The line has magnitude in one way, the plane in two ways, and the solid in three ways, and beyond these there is no other magnitude because the three are all.

They who are to be judges must also be performers.

Wicked men obey out of fear. good men, out of love

Why is it that all men who are outstanding in philosophy, poetry or the arts are melancholic?

The soul of animals is characterized by two faculties, (a) the faculty of discrimination which is the work of thought and sense, and (b) the faculty of originating local movement.

It is of itself that the divine thought thinks (since it is the most excellent of things), and its thinking is a thinking on thinking.

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