We laugh at that which we cannot bear to face.

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.

Since music has so much to do with the molding of character, it is necessary that we teach it to our children.

The male has more teeth than the female in mankind, and sheep and goats, and swine. This has not been observed in other animals. Those persons which have the greatest number of teeth are the longest lived; those which have them widely separated, smaller, and more scattered, are generally more short lived.

Evidence from torture may be considered completely untrustworthy

Health is a matter of choice, not a mystery of chance

We, on the other hand, must take for granted that the things that exist by nature are, either all or some of them, in motion.