“It is harder to fight against pleasure than against anger.”
As quoted by Aristotle in Nicomachean Ethics, Book II (1105a)
Original
χαλεπώτερον ἡδονῇ μάχεσθαι ἢ θυμῷ
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Heraclitus 46
pre-Socratic Greek philosopher -535Related quotes

§ 5
From Lives and Opinions of the Eminent Philosophers by Diogenes Laërtius

“Sometimes it is harder to deprive oneself of a pain than of a pleasure.”
Quoted, Tender is the Night (1934)

“You are either with us or you are against us in the fight against terror.”
Press conference http://georgewbush-whitehouse.archives.gov/news/releases/2001/11/20011106-4.html, with President Jacques Chirac of France. (November 6, 2001)
2000s, 2001

As quoted in The Many Faces of Socialism Comparative Sociology and Politics (1983) by Paul Hollander, p. 224,
Context: I am not interested in dry economic socialism. We are fighting against misery, but we are also fighting against alienation. One of the fundamental objectives of Marxism is to remove interest, the factor of individual interest, and gain, from people's psychological motivations. Marx was preoccupied both with economic factors and with their repercussions on the spirit. If communism isn't interested in this too, it may be a method of distributing goods, but it will never be a revolutionary way of life.

“The life of a designer is a life of fight: fight against the ugliness.”
“How is it possible to hold such anger against something you don't believe in?”
Source: An Echo in the Darkness

“Against a better will the will fights ill,…”
Canto XX, line 1 (tr. C. E. Norton).
The Divine Comedy (c. 1308–1321), Purgatorio