It is the mark of an educated mind to be able to entertain a thought without accepting it.

We are better able to study our neighbours than ourselves, and their actions than our own.

For just as for a flute-player, a sculptor, or an artist, and, in general, for all things that have a function or activity, the good and the well is thought to reside in the function, so would it seem to be for man, if he has a function.

Every virtue is a mean between two extremes, each of which is a vice.

It is true, indeed, that the account Plato gives in 'Timaeus' is different from what he says in his so-called 'unwritten teachings.'

The first principle of all action is leisure.

Man perfected by society is the best of all animals; he is the most terrible of all when he lives without law, and without justice.