Great Ideas

Time

The measure of change and duration, and its puzzles of past, present and future.

Works to read

Passages

From the texts

  • As to what time is or what is its nature, the traditional accounts give us as little light as the preliminary problems which we have worked through.

    — Aristotle, Posterior Analytics and Physics

  • When then time is passing, it may be perceived and measured; but when it is past, it cannot, because it is not.

    — Augustine of Hippo, Confessions

Verified quotations

No verified quotation in the library contains this idea's key words yet.

Passages are verified quotations from the library that use one of these words: time, hours, years, past. Sentences under “From the texts” are copied word for word from the full texts in this library. Read each in its context on the work's page.

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