Opinion involves belief (for without belief in what we opine we cannot have an opinion), and in the brutes though we often find imagination we never find belief.

Man is a goal-seeking animal. His life only has meaning if he is reaching out and striving for his goals.

In painting, the most brilliant colors, spread at random and without design, will give far less pleasure than the simplest outline of a figure.

The greatest of all pleasures is the pleasure of learning.

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.

Selfishness doesn't consist in a love to yourself, but in a big degree of such love.

It is not easy for a person to do any great harm when his tenure of office is short, whereas long possession begets tyranny.