“The happiness of those who want to be popular depends on others; the happiness of those who seek pleasure fluctuates with moods outside their control; but the happiness of the wise grows out of their own free acts.”

“Those who are not looking for happiness are the most likely to find it, because those who are searching forget that the surest way to be happy is to seek happiness for others.”

“Only a fool can be happy. For happiness consists of two contradictory elements: contentment and pleasure. Enjoy pleasure and you have no contentment; be content and you have no pleasure. For this reason happiness is conceivable only for those who enjoy themselves without thinking that they will always want more and thus be discontented, or for those who are content without thinking that they have no pleasure. Whoever reflects can never be happy, unless he is a fanatic and thus blinded…thus exercising control over his intelligence with his feelings, instead of the other way round”

“Happiness is a byproduct of function, purpose, and conflict; those who seek happiness for itself seek victory without war.”

“Happiness is not best achieved by those who seek it directly.”

“All I have learned in life really just boils down to this: there is only one difference between the so-called wise and the so-called foolish...and between those who are truly happy and those who are not. Those who are wise - and those who are happy - embrace and appreciate life. Those who are unhappy and unwise do not. That is all; that is the only difference.”