"A life without investigation is not worth living." — Socrates

It is never too late to be wise.

Source: The Life and Adventures of Robinson Crusoe

A chain is no stronger than its weakest link, and life is after all a chain.

Source: The Varieties of Religious Experience (1902)

A day, an hour, of virtuous liberty Is worth a whole eternity in bondage

Source: Cato, act 2 (1713)

The price of anything is the amount of life you exchange for it

Source: Walden (1854)

I think, therefore I am.

Source: A Discourse on Method (1637), Part IV

One should always be in love. That is the reason one should never marry

Source: Miscellaneous Aphorisms (1911)

Socrates Quote