The eye which turns from a white object in the light of the sun and goes into a less fully lighted place will see everything as dark.

To enjoy - to love a thing for its own sake and for no other reason.

The lover is moved by the thing loved, as the sense is by that which perceives, and it unites with it and they become one and the same thing... when the lover is united with the beloved it finds rest there; when the burden is laid down there it finds rest.

What is fair in men, passes away, but not so in art

The artist sees what others only catch a glimpse of.

Therefore, O students, study mathematics and do not build without foundations.

Not to anticipate is already to moan.