We must doubt the certainty of everything which passes through the senses, but how much more ought we to doubt things contrary to the senses, such as the existence of God and the soul.

Motion is created by the destruction of balance.

Let not your rage or malice destroy a life.

The painter strives and competes with nature.

It is the infinite alone that cannot be attained, for if it could it would become finite.

The eye - which sees all objects reversed - retains the images for some time.

The days are long enough for those who use them.