Virtue means doing the right thing, in relation to the right person, at the right time, to the right extent, in the right manner, and for the right purpose. Thus, to give money away is quite a simple task, but for the act to be virtuous, the donor must give to the right person, for the right purpose, in the right amount, in the right manner, and at the right time.

Art takes nature as its model.

Shipping magnate of the 20th century If women didn't exist, all the money in the world would have no meaning.

The mathematical sciences particularly exhibit order symmetry and limitations; and these are the greatest forms of the beautiful.

Plato is my friend, but truth is a better friend.

At his best, man is the noblest of all animals; separated from law and justice he is the worst.

Concerning the generation of animals akin to them, as hornets and wasps, the facts in all cases are similar to a certain extent, but are devoid of the extraordinary features which characterize bees; this we should expect, for they have nothing divine about them as the bees have.