Arthur Schopenhauer

Every possession and every happiness is but lent by chance for an uncertain time, and may therefore be demanded back the next hour.

The greatest of follies is to sacrifice health for any other kind of happiness.

It is a clear gain to sacrifice pleasure in order to avoid pain.

A man's delight in looking forward to and hoping for some particular satisfaction is a part of the pleasure flowing out of it, enjoyed in advance. But this is afterward deducted, for the more we look forward to anything the less we enjoy it when it comes.

Boredom is just the reverse side of fascination: both depend on being outside rather than inside a situation, and one leads to the other.

The difficulty is to try and teach the multitude that something can be true and untrue at the same time.

If you want to know your true opinion of someone, watch the effect produced in you by the first sight of a letter from him.

Men are by nature merely indifferent to one another; but women are by nature enemies.

Suffering by nature or chance never seems so painful as suffering inflicted on us by the arbitrary will of another.

Politeness is to human nature what warmth is to wax.

Change alone is eternal, perpetual, immortal.

The fundament upon which all our knowledge and learning rests is the inexplicable.