“Hatred and anger are the greatest poison to the happiness of a good mind.”
Section II, Chap. III.
The Theory of Moral Sentiments (1759), Part I
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Adam Smith 175
Scottish moral philosopher and political economist 1723–1790Related quotes

“Hatred is the anger of the weak.”
La haine, c'est la colère des faibles!
Lettres de mon Moulin (1869; repr. Paris: Alphonse Lemerre, 1882) p. 19; John P. Macgregor (trans.) Letters from My Mill (New York: Taplinger, 1967) p. 18.

Quoted in Helen McCarthy, Osamu Tezuka: God of manga , translated by Fabio Deotto, Edizioni BD, 2010, back cover.

“I hate the place like poison with a sincere hatred.”
Responding to a suggestion that he return to Hollywood to work on a script of Tender is the Night in a letter to his agent (10 January 1935)
Quoted, Letters

Essay 1, Section 7
On the Genealogy of Morality (1887)
Context: As is well known, the priests are the most evil enemies — but why? Because they are the most impotent. It is because of their impotence that in them hatred grows to monstrous and uncanny proportions, to the most spiritual and poisonous kind of hatred. The truly great haters in the world history have always been priests; likewise the most ingenious haters: other kinds of spirit hardly come into consideration when compared with the spirit of priestly vengefulness.

“Anger repressed can poison a relationship as surely as the cruelest words.”
"When Your Husband's Affection Cools" in Good Housekeeping (May 1972)

“The greatest remedy for anger is delay.”

Suffocating Rubber Clown Suit, p. 8
Catching the Big Fish (2006)
Context: When I started meditating, I was filled with anxieties and fears. I felt a sense of depression and anger.
I often took out this anger on my first wife. After I had been meditating for about two weeks, she came to me and said, "What's going on?" I was quiet for a moment. But finally I said, "What do you mean?" And she said, "This anger, where did it go?" And I hadn't even realized that it had lifted.
I call that depression and anger the Suffocating Rubber Clown Suit of Negativity. It's suffocating, and that rubber stinks. But once you start meditating and diving within, the clown suit starts to dissolve. You finally realize how putrid was the stink when it starts to go. Then, when it dissolves, you have freedom.
Anger and depression and sorrow are beautiful things in a story, but they are like poison to the filmmaker or artist. They are like a vise grip on creativity. If you're in that grip, you can hardly get out of bed, much less experience the flow of creativity and ideas. You must have clarity to create. You have to be able to catch ideas.