Amongst mortals no man is happy; wealth may pour in and make one luckier than another, but none can happy be.

Call no man happy till he is dead.

...count no man happy till he dies, free of pain at last.

No man’s life should be accounted a happy one until it is over.

No man can demonstrate peace and cling to unhappiness.

In the first place, no man is happy but strives his whole life long after a supposed happiness which he seldom attains, and even if he does it is only to be disappointed with it.

No one is ever satisfied where he is.

Everybody strains after happiness, and the result is that nobody's happy.

For of mortals there is no one who is happy. If wealth flows in upon one, one may be perhaps Luckier than one’s neighbor, but still not happy.

A man is never happy, but spends his whole life in striving after something that he thinks will make him so; he seldom attains his goal, and when he does, it is only to be disappointed; he is mostly shipwrecked in the end, and comes into harbour with mast and rigging gone. And then, it is all one whether he is happy or miserable; for his life was never anything more than a present moment always vanishing; and now it is over.

The intention that man should be happy is not in the plan of Creation.

A person is never happy except at the price of some ignorance.

Indeed, man wishes to be happy even when he lives so as to make happiness impossible.

there never is a happy ending because nothing ever ends.