Excellence or virtue is a settled disposition of the mind that determines our choice of actions and emotions and consists essentially in observing the mean relative to us ... a mean between two vices, that which depends on excess and that which depends on defect.

The greatest of all pleasures is the pleasure of learning.

One cannot say of something that it is and that it is not in the same respect at the same time.

Prayers and sacrifices are of no avail.

People of superior refinement and of active disposition identify happiness with honour; for this is roughly speaking, the end of political life.

Everyone honors the wise.

All art, all education, can be merely a supplement to nature.