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.
The investigation of the meaning of words is the beginning of education.
As rust corrupts iron, so envy corrupts man.
Observe your enemies, for they first find out your faults.
When brothers agree, no fortress is so strong as their common life.
As iron is eaten away by rust, so the envious are consumed by their own passion.