EigoPro 1級 読解 — The Self That Never Was: Philosophy's Search for Personal Identity

We move through life with an unshaken conviction that we remain, in some deep sense, the same person from cradle to grave. Yet philosophers have long struggled to say what, precisely, this persisting self consists in. The body offers an obvious candidate, but it is a poor one: nearly every cell is replaced over the years, and the person who emerges from decades of change shares scarcely any matter with the infant who began the journey. If continuity of substance grounded identity, we would be obliged to conclude that we are, quite literally, not who we once were. Locke's celebrated alternative located identity not in the flesh but in memory: I am the same person as the boy in the photograph because I can, in principle, recall being him. Elegant though this is, it falters under pressure. The memory criterion begs the question—to call a memory mine already presupposes the self whose continuity it was meant to prove. Nor can the gradual, overlapping chain of recollection rescue the theory without quietly smuggling back the very identity in dispute. Refinements that appeal instead to broad psychological continuity—the unbroken flow of beliefs, intentions, and dispositions—fare little better once we press them with imagined cases. Consider the teleportation thought experiment beloved of contemporary philosophers. Suppose a machine scans your body, destroys it, and assembles a flawless replica elsewhere—identical in atoms and memories. Has anyone travelled, or has one person died and a stranger been born wearing his face? The replica would nonetheless strike most of us as a copy, not the original, and that stubborn intuition undermines bodily and psychological criteria alike. Whatever we are clinging to seems to survive neither the loss of our matter nor the duplication of our minds. Perhaps, then, the lesson is not that we have failed to find the criterion but that we have misframed the search. The self may be less a discovered entity than a useful narrative we impose, the act by which we bind disparate experiences into a single ongoing story. Such a verdict is not as radical as it sounds; the Buddhist doctrine of anatta, or no-self, reached a comparable conclusion millennia ago. Far from a defeat, the collapse of every neat criterion may be philosophy's most honest result—an invitation to ask not what the self is, but how, and why, we keep insisting that there is one.

5問合格 60%以上普通

新規登録 または ログイン が必要です

この単元の問題を3問、解説つきで公開しています

1級 · 読解 · 全5問

問 1

Which of the following best captures the central argument of the passage?

  • Advances in neuroscience have decisively confirmed that the self is located in the continuity of brain matter.
  • Eastern philosophical traditions have always understood identity more accurately than their Western counterparts.
  • Memory provides the most reliable foundation for personal identity once its circularity is properly addressed.
  • No single criterion of personal identity withstands scrutiny, suggesting that the persisting self may be a convenient fiction rather than a metaphysical fact.
Phrase

the persisting self as a possible fiction

1級読解主旨把握論旨全体
⚡ひとことで

本文は同一性の各基準がいずれも論破され、持続する自己は便利な虚構かもしれないと示唆する。

選択肢の解説Choice Analysis

「No single criterion of personal identity withstands scrutiny, suggesting that the persisting self may be a convenient fiction rather than a metaphysical fact.」

正解

本文は冒頭で「持続する自己」という直感を提示し、続いて身体基準・記憶基準・心理的連続性基準を順に検討して、それぞれが反例や循環論法で崩れることを示す。最終段落で the self may be less a discovered entity than a useful narrative we impose と述べており、どの基準も耐えられず自己が虚構かもしれないという結論が論旨の核心である。よってこの選択肢が全体を最も的確にまとめている。

  • 「Memory provides the most reliable foundation for personal identity once its circularity is properly addressed.」

    = 記憶こそ最も信頼できる基準だとする見解 ━ 本文は記憶基準を Locke の循環論法 (Butler/Reid の批判) として退けており、最有力とはしていない。

  • 「Advances in neuroscience have decisively confirmed that the self is located in the continuity of brain matter.」

    = 脳物質の連続性に自己があると科学が証明したとする主張 ━ 本文は身体・脳基準も移植思考実験で崩れると述べ、確証したとは書いていない。

  • 「Eastern philosophical traditions have always understood personal identity far more accurately than any of their Western counterparts.」

    = 東洋の伝統が西洋より常に正確に同一性を理解してきたという主張 ━ 本文は無我 (anatta) を一つの呼応例として触れるだけで、優劣の一般化はしていない。

▦Collocation
パターン意味例
withstand scrutiny精査に耐えるNo criterion withstands scrutiny.
a convenient fiction便利な虚構The self may be a convenient fiction.
impose a narrative on〜に物語を押しつけるWe impose a narrative on disparate experiences.
beg the question論点先取りする / 循環するThe memory criterion begs the question.
a discovered entity発見される実体Identity is less a discovered entity than a construct.
❝例文

  • The hypothesis simply does not withstand scrutiny.

    その仮説は精査に到底耐えない。

  • Treating the deficit as temporary is a convenient fiction.

    赤字を一時的とみなすのは便利な虚構だ。

  • Historians impose a coherent narrative on chaotic events.

    歴史家は混沌とした出来事に整合的な物語を押しつける。

  • His argument quietly begs the very question at issue.

    彼の議論は争点そのものをひそかに前提にしている。

💡Tip · 覚えるコツ

C2 の主旨設問は最終段落の評価的な一文 (less X than Y 構文など) に著者の結論が凝縮されることが多い。各段落が「基準提示→反例で却下」のパターンを反復しているなら、主旨は個々の基準ではなく「すべて却下される」というメタ的帰結だと見抜く。

問 2

According to the passage, why does Locke's memory criterion fail?

  • Memories are too easily fabricated by the brain to serve as evidence of anything.
  • Locke confused biological continuity with the continuity of consciousness.
  • Most adults cannot recall their earliest years, leaving gaps the criterion cannot bridge.
  • Identifying which memories are genuinely one's own already presupposes the very personal identity the criterion is meant to establish.
Phrase

the memory criterion begs the question

1級読解詳細記憶基準の難点
⚡ひとことで

記憶基準は「自分の記憶か」を判定する時点で同一性を前提にしてしまう循環に陥る。

選択肢の解説Choice Analysis

「Identifying which memories are genuinely one's own already presupposes the very personal identity the criterion is meant to establish.」

正解

本文は the memory criterion begs the question: to call a memory mine already presupposes the self whose continuity it was meant to prove と明示している。つまり「その記憶が自分のものか」を決める段階で、証明したいはずの自己の同一性をすでに使ってしまう循環 (Butler/Reid の古典的批判) が失敗の理由である。この選択肢はその循環をそのまま述べている。

  • 「Memories are too easily fabricated by the brain to serve as evidence of anything.」

    = 脳が記憶を簡単に捏造するから証拠にならないとする説明 ━ 本文の却下理由は捏造ではなく循環論法であり、論点がずれている。

  • 「Locke confused biological continuity with the continuity of consciousness.」

    = Locke が生物的連続性と意識の連続性を取り違えたとする説明 ━ むしろ Locke は意識/記憶を身体から切り離した側であり、本文の記述と逆。

  • 「Most adults cannot recall anything of their earliest years, which leaves gaps that the criterion cannot possibly bridge.」

    = 大半の大人が幼少期を思い出せず空白が埋まらないという説明 ━ これは Reid の将校パラドックスに近い別論点で、本文が挙げる循環の理由ではない。

▦Collocation
パターン意味例
presuppose the very Xまさにその X を前提にするIt presupposes the very self in question.
call a memory one's ownある記憶を自分のものと呼ぶTo call a memory one's own is itself loaded.
be meant to prove証明するはずであるthe continuity it was meant to prove
fall into circularity循環に陥るThe account falls into circularity.
meant to establish確立するはずのthe identity the criterion is meant to establish
❝例文

  • This defence presupposes the very conclusion it seeks.

    この弁護は求める結論そのものを前提にしている。

  • To call the data reliable is already loaded.

    そのデータを信頼できると呼ぶこと自体が含みを持つ。

  • The model was meant to prove causation, not assume it.

    そのモデルは因果を証明するはずで、仮定するためではなかった。

  • Such reasoning quietly falls into circularity.

    そうした推論はひそかに循環に陥る。

💡Tip · 覚えるコツ

「beg the question」は『当然〜という疑問が生じる』ではなく『論点先取り (循環)』が学術的原義。C2 では誤用的口語義に引かれず文脈で判定する。設問が『なぜ失敗するか』なら、否定された基準の直後の that 節・コロン以下に理由が置かれる定型を狙う。

問 3

What does the passage say about the teleportation thought experiment?

  • It demonstrates that personal identity depends solely on uninterrupted spatial location.
  • It proves that consciousness can be transferred without loss provided the replica is exact.
  • It exposes that a perfect physical and psychological replica would intuitively strike us as a copy rather than the original person, undermining bodily and continuity criteria alike.
  • It shows that future technology will eventually resolve the metaphysical puzzle entirely.
Phrase

the duplicate strikes us as a copy

1級読解詳細思考実験の含意
⚡ひとことで

完璧な複製でも直感的には「複製」に思える点が、身体・連続性基準の両方を揺るがす。

選択肢の解説Choice Analysis

「It exposes that a perfect physical and psychological replica would intuitively strike us as a copy rather than the original person, undermining bodily and continuity criteria alike.」

正解

本文は teleportation 思考実験について、a flawless replica—identical in atoms and memories—would nonetheless strike most of us as a copy, not the original と述べる。原子レベルでも記憶でも同一な複製が直感的には別物に見えることが、身体基準 (同じ物質) も心理的連続性基準 (同じ記憶) も決定打にならないことを同時に暴く。よってこの選択肢が本文の含意に合致する。

  • 「It proves that consciousness can be transferred from one body to another without any loss whatever, provided only that the replica is exact in every detail.」

    = 複製が正確なら意識を損失なく転送できると証明するという読み ━ 本文は逆に複製が『コピー』に見えると述べており、無損失転送を否定的に扱う。

  • 「It demonstrates that personal identity depends solely on uninterrupted spatial location.」

    = 同一性は途切れない空間的位置だけで決まると示すという読み ━ 本文は位置を唯一の基準とは述べておらず、むしろ全基準の不備を示す装置として使う。

  • 「It shows that future technology will eventually resolve the metaphysical puzzle entirely.」

    = 将来の技術が形而上学的難問を完全に解くと示すという読み ━ 本文の主眼は技術的将来ではなく直感の検証であり、無関係な拡張。

▦Collocation
パターン意味例
strike someone as〜に…と思えるIt strikes us as a mere copy.
a flawless replica完璧な複製a flawless replica down to the atom
identical in X and YX でも Y でも同一identical in atoms and memories
undermine a criterion基準を掘り崩すIt undermines the bodily criterion.
the original, not a copyコピーではなく原本We want the original, not a copy.
❝例文

  • The proposal strikes me as premature.

    その提案は時期尚早に思える。

  • The forgery was flawless down to the brushstroke.

    その贋作は筆致に至るまで完璧だった。

  • The findings undermine the prevailing criterion.

    その知見は通説の基準を掘り崩す。

  • Buyers want the original, not a clever copy.

    買い手は巧妙な複製ではなく原本を求める。

💡Tip · 覚えるコツ

思考実験が出たら『何を証明するため』ではなく『どの直感を引き出し、それが何を反証するか』を問う。C2 の誤答は実験を肯定的結論 (証明した) に読み替えがちだが、哲学的思考実験は通常ある立場を反証するために使われる点を押さえる。

残り2問は、解いて確かめられます

全5問すべてに、この形式の解説が付いています。 間違えた問題は記録され、あとから復習できます。

無料で登録して続きを解く

インストール不要・カード登録なし・いま全機能無料

この単元の講義を見る1級の単元一覧1級の用語集