The test of every religious, political, or educational system is the man that it forms.

A woman is sometimes fugitive, irrational, indeterminable, illogical and contradictory. A great deal of forbearance ought to be shown her, and a good deal of prudence exercised with regard to her, for she may bring about innumerable evils without knowing it. Capable of all kinds of devotion, and of all kinds of treason, monster incomprehensible, raised to the second power, she is at once the delight and the terror of man.

To marry unequally is to suffer equally.

Before giving advice we must have secured its acceptance, or, rather, have made it desired.

Philosophy means the complete liberty of the mind, and therefore independence of all social, political or religious prejudice... It loves one thing only... truth.

Everything which is, is thought, but not conscious and individual thought. The human intelligence is but the consciousness of being. It is what I have formulated before: Everything is a symbol of a symbol, and a symbol of what? Of mind.

Nothing finite is true, is interesting, is worthy to fix my attention. All that is particular is exclusive, and all that is exclusive repels me.