Supreme happiness will be the greatest cause of misery, and the perfection of wisdom the occassion of folly.

Inequality is the cause of all local movements.

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.

Lust is the cause of generation.

There is no result in nature without a cause; understand the cause and you will have no need of the experiment.

Given the cause nature produces the effect in the briefest manner that it can employ.

Good culture is born of a good disposition; and since the cause is more to be praised than the effect, I will rather praise a good disposition without culture, than good culture without the disposition.