O Time with your teethy years! You swallow up all things little by little in a slow-motion, wrinkling process of dying.

One's thoughts turn towards Hope.

In the days of thy youth seek to obtain that which shall compensate the losses of thy old age.

All objects transmit their image to the eye in pyramids and the nearer to the eye these pyramids are intersected the smaller will the image appear of the objects which cause them.

Water is the driving force of all nature.

Everything proceeds from everything else and everything becomes everything, and everything can be turned into everything else.

All our knowledge originates in opinion.