Marriage is like putting your hand into a bag of snakes in the hope of pulling out an eel.

Where the spirit does not work with the hand, there is no art.

Blinding ignorance does mislead us. O! Wretched mortals, open your eyes!

Intellectual passion drives out sensuality.

Experience does not err. Only your judgments err by expecting from her what is not in her power.

Experience never errs; it is only your judgments that err by promising themselves effects such as are not caused by your experiments.