Life is a well of joy; but for those out of whom an upset stomach speaks, which is the father of melancholy, all wells are poisoned.

Without meaning, without substance, without aim: a mere 'public opinion'.

Life is an instinct for growth, for survival, for the accumulation of forces, for power.

The hypocrite who always plays one and the same part ceases at last to be a hypocrite.

Thus strength is afforded by good and thorough customs, thus is learnt the subjection of the individual, and strenuousness of character becomes a birth gift and afterwards is fostered as a habit.

Heroism--that is the disposition of a man who aspires to a goal compared to which he himself is wholly insignificant. Heroism is the good will to self-destruction.

All signs of superhuman nature appear in man as illness or insanity.