I wish to persuade the reader that, whatever the arguments may be, reason lays no embargo upon happiness; nay, more, I am persuaded that those who quite sincerely attribute their sorrows to their views about the universe are putting the cart before the horse: the truth is that they are unhappy for some reason of which they are not aware, and this unhappiness leads them to dwell upon the less agreeable characteristics of the world in which they live.
Source: The Conquest of Happiness, 1930, chap.2: Byronic unhappiness
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