He who is learning and learning and doesn't apply what he knows is like the one who is plowing and plowing and doesn't seed.
The price of apathy towards public affairs is to be ruled by evil men.
Ideas are the source of all things
Arithmetic is a kind of knowledge in which the best natures should be trained, and which must not be given up.
Ignorance, the root and the stem of every evil.
When the tyrant has disposed of foreign enemies by conquest...and there is nothing to fear from them, then he is always stirring up some war