It is the mark of an educated mind to rest satisfied with the degree of precision which the nature of the subject admits and not to seek exactness where only an approximation is possible.

We are the sum of our actions, and therefore our habits make all the difference.

If happiness is activity in accordance with excellence, it is reasonable that it should be in accordance with the highest excellence.

Democracy is the form of government in which the free are rulers.

Nature creates nothing without a purpose.

Men come together in cities in order to live: they remain together in order to live the good life

Anything that we have to learn to do we learn by the actual doing of it; People become builders by building and instrumentalists by playing instruments. Similarily, we become just by performing just acts, temperate by performing temperate ones, brave by performing brave ones.