One must know how to conserve oneself- the best test of independence.

The relatives of a suicide hold it against him that out of consideration for their reputation he did not remain alive.

Not the intensity but the duration of high feelings makes high men.

In morality, man treats himself not as individuum but as dividuum.

The most dangerous follower is the one whose defection would destroy the whole party: hence, the best follower.

The doctrine of equality! There exists no more poisonous poison: for it seems to be preached by justice itself, while it is the end of justice.

A degree of culture, and assuredly a very high one, is attained when man rises above superstitions and religious notions and fears, and, for instance, no longer believes in guardian angels or in original sin, and has also ceased to talk of the salvation of his soul.