“I think the two things most opposed to good counsel are haste and passion; haste usually goes hand in hand with folly, passion with coarseness and narrowness of mind.”
Book III, 3.42-[1] (Speech of Diodotus..).
History of the Peloponnesian War, Book III
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Thucydides 76
Greek historian and Athenian generalRelated quotes

“Whatever is produced in haste goes easily to waste.”
Source: Gulistan (1258), Chapter 8, story 36

Here lies
The History of the World Book V, chapter 6
Don Alvarez in Act IV, Scene 1.
Alzira: A Tragedy (1736)
Context: Youth is ever apt to judge in haste,
And lose the medium in the wild extreme,
Do not repent, but regulate your passion:
Though love is reason, its excess is rage.
Give me, at least, your promise to reflect,
In cool, impartial solitude, and still.
No last decision till we meet again.

Source: Earthsea Books, A Wizard of Earthsea (1968), Chapter 10 (Ged)

1940s–present, A Mencken Chrestomathy (1949)

Source: The Gospel in Ezekiel Illustrated in a Series of Discourses (1856), P. 32 (The Defiler).

Published in 1755, Hymns: "O God of Bethel", Chambers Dictionary of Quotations, p. 278.

Curtain - Poirot's Last Case (1975)
Context: I have no more now to say. I do not know, Hastings, if what I have done is justified or not justified. No — I do not know. I do not believe that a man should take the law into his own hands... But on the other hand, I am the law! As a young man in the Belgian police force I shot down a desperate criminal who sat on a roof and fired at people below. In a state of emergency martial law is proclaimed.