"We do not know either unalloyed happiness or unmitigated misfortune. Everything in this world is a tangled yarn; we taste nothing in its purity; we do not remain two moments in the same state. Our affections as well as bodies, are in a perpetual flux."

Next Quote

It is believed that physiognomy is only a simple development of the features already marked out by nature. It is my opinion, however, that in addition to this development, the features come insensibly to be formed and assume their shape from the frequent and habitual expression of certain affections of the soul. These affections are marked on the countenance; nothing is more certain than this; and when they turn into habits, they must leave on it durable impressions.

— Jean-Jacques Rousseau