As iron is eaten away by rust, so the envious are consumed by their own passion.
Pay attention to your enemies, for they are the first to discover your mistakes.
How to get rid of having anything to unlearn.
The investigation of the meaning of words is the beginning of education.
We weed out the darnel from the corn and the unfit in war, but do not excuse evil men from the service of the state.
To all my friends without distinction I am ready to display my opulence: come one, come all; and whosoever likes to take a share is welcome to the wealth that lies within my soul.