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.
“The passions of a revolution are apt to hurry even good men into excesses.”
Essay (12 August 1795)
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Alexander Hamilton 106
Founding Father of the United States 1757–1804Related quotes

“Men are apt to offend ('tis true) where they find most goodness to forgive.”
Act IV, scene xi
The Old Bachelor (1693)

“3387. Men apt to promise, are apt to forget.”
Introductio ad prudentiam: Part II (1727), Gnomologia (1732)

“Such excess of passion
is quite out of fashion”
Source: Amphigorey

“Weak men are apt to be cruel.”
http://books.google.com/books?id=K6lsEtMo1KMC&q=%22Weak+men+are+apt+to+be+cruel%22&pg=PA128#v=onepage
Political, Moral, and Miscellaneous Reflections (1750), Moral Thoughts and Reflections

“Good slaves are free, but bad free men are slaves of many passions.”
As quoted by Stobaeus, iii.1.18

“Passion cannot be beautiful without excess; one either loves too much or not enough.”

“There is moderation even in excess.”
Book VI, Chapter 1.
Books, Coningsby (1844), Vivian Grey (1826)

“Men are most apt to believe what they least understand.”
Book III, Ch. 11. Of Cripples
Essais (1595), Bartlett's Familiar Quotations, 10th ed. (1919)