Oh! my friend, when you feel bursting on your lips the vow of eternal love, do not be afraid to yield, but do not confound wine with intoxication; do not think the cup divine because the draft is of celestial flavor; do not be astonished to find it broken and empty in the evening.

Perfection does not exist; to understand it is the triumph of human intelligence; to expect to possess it is the most dangerous kind of madness.

Disgrace is the synonym of discovery.

Few persons enjoy real liberty; we are all slaves to ideas or habits.

It is easy to promise, and alas! How easy to forget!

Reason may cure illusions, but not suffering.

There is no worse sorrow than remembering happiness in the day of sorrow.