The first principle of all action is leisure.

... a science must deal with a subject and its properties.

The one exclusive sign of thorough knowledge is the power of teaching.

Men must be able to engage in business and go to war, but leisure and peace are better; they must do what is necessary and indeed what is useful, but what is honorable is better. On such principles children and persons of every age which requires education should be trained.

For example, justice is considered to mean equality, It does mean equality- but equality for those who are equal, and not for all.

One kind of justice is that which is manifested in distributions of honour or money or the other things that fall to be divided among those who have a share in the constitution ... and another kind is that which plays a rectifying part in transactions.

To perceive is to suffer.