Respectfully Quoted: A Dictionary of Quotations. 1989.
NUMBER:
1223
AUTHOR:
Edward Young (16831765)
QUOTATION:
At thirty, man suspects himself a fool; Knows it at forty, and reforms his plan; At fifty, chides his infamous delay, Pushes his prudent purpose to resolve; In all the magnanimity of thought Resolves, and re-resolves; then dies the same. And why? Because he thinks himself immortal. All men think all men mortal but themselves.
ATTRIBUTION:
EDWARD YOUNG, Night Thoughts, 1, lines 41724, The Complete Works, Poetry and Prose, ed. James Nichols, p. 13 (1854, reprinted 1968).