“The search for happiness is one of the chief sources of unhappiness.”
Section 280 http://books.google.com/books?id=msOwAAAAIAAJ&q=%22The+search+for+happiness+is+one+of+the+chief+sources+of+unhappiness%22&pg=PA151#v=onepage
The Passionate State Of Mind, and Other Aphorisms (1955)
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Eric Hoffer 240
American philosopher 1898–1983Related quotes

“One is never so happy or so unhappy as one fancies.”
On n'est jamais si heureux ni si malheureux qu'on s'imagine.
Maxim 49.
Reflections; or Sentences and Moral Maxims (1665–1678)

“All happy families resemble one another, each unhappy family is unhappy in its own way.”
Все счастливые семьи похожи друг на друга, каждая несчастливая семья несчастлива по-своему.
Pt. I, ch. 1
Variant translations: Happy families are all alike; every unhappy family is unhappy in its own way.
All happy families resemble one another; every unhappy family is unhappy in its own way.
Variant: Happy families are all alike; every unhappy family is unhappy in its own way.
Source: Anna Karenina (1875–1877; 1878)

“Emotion is the chief source of all becoming-conscious.”
Psychological Aspects of the Mother Archetype (1938)
Context: Emotion is the chief source of all becoming-conscious. There can be no transforming of darkness into light and of apathy into movement without emotion.

“Your most unhappy customers are your greatest source of learning.”
Business @ The Speed of Thought (1999) http://www.microsoft.com/billgates/speedofthought/default.asp
1990s

“We must spoil our women, boy. A happy woman makes a happy home. An unhappy one makes us drink.”
Source: Styxx

Love and Death (1975)