“The cause of anger is the belief that we are injured; this belief, therefore, should not be lightly entertained. We ought not to fly into a rage even when the injury appears to be open and distinct: for some false things bear the semblance of truth. We should always allow some time to elapse, for time discloses the truth.”
De Ira (On Anger): Book 2, cap. 22, line 2
Alternate translation: Time discovers truth. (translator unknown).
Moral Essays
Original
Contra primus itaque causas pugnare debemus; causa autem iracundiae opinio iniuriae est, cui non facile credendum est. Ne apertis quidem manifestisque statim accedendum; quaedam enim falsa ueri speciem ferunt. Dandum semper est tempus: ueritatem dies aperit.
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Seneca the Younger 225
Roman Stoic philosopher, statesman, and dramatist -4–65 BCRelated quotes

1840s, Heroes and Hero-Worship (1840), The Hero as Divinity

p, 125
Geometrical Lectures (1735)

Es ist so gewiß als wunderbar, daß Wahrheit und Irrthum aus Einer Quelle entstehen; deßwegen man oft dem Irrthum nicht schaden darf, weil man zugleich der Wahrheit schadet.
Maxims and Reflections (1833)
The Sacred Theory of the Earth, quoted in Stephen Jay Gould, Time's Arrow, Time's Cycle (1987), p. 32; ellipsis Gould's.