Mostly it is loss which teaches us about the worth of things.

Ordinary people merely think how they shall 'spend' their time; a man of talent tries to 'use' it.

Man shows his character best in trifles.

Thus, the task is not so much to see what no one yet has seen, but to think what nobody yet has thought about that which everybody sees.

Every nation criticizes every other one - and they are all correct.

... that when you're buying books, you're optimistically thinking you're buying the time to read them. (Paraphrase of Schopenhauer)

A happy life is impos­si­ble; the best that a man can attain is a heroic life.