Those who assert that the mathematical sciences say nothing of the beautiful or the good are in error. For these sciences say and prove a great deal about them; if they do not expressly mention them, but prove attributes which are their results or definitions, it is not true that they tell us nothing about them. The chief forms of beauty are order and symmetry and definiteness, which the mathematical sciences demonstrate in a special degree.

The beginning, as the proverb says, is half the whole.

In everything, it is no easy task to find the middle.

Nature makes nothing incomplete, and nothing in vain.

Friends enhance our ability to think and act.

A true friend is one soul in two bodies.

Patience is so like fortitude that she seems either her sister or her daughter.