A sense of humour is the only divine quality of man - Arthur Schopenhauer

"Happiness consists in frequent repetition of pleasure"

"We can come to look upon the deaths of our enemies with as much regret as we feel for those of our friends, namely, when we miss their existence as witnesses to our success."

"We forfeit three-fourths of ourselves in order to be like other people."

"A man can be himself only so long as he is alone, and if he does not love solitude, he will not love freedom, for it is only when he is alone that he is really free."

"Almost all of our sorrows spring out of our relations with other people. There is no more mistaken path to happiness than worldliness."