The advantages of philosophy? That I am able to hold converse with myself.

- Antisthenes

Pay attention to your enemies, for they are the first to discover your mistakes.

- Antisthenes

The investigation of the meaning of words is the beginning of education.

- Antisthenes

I'd rather be mad than feel pleasure.

- Antisthenes

States are doomed when they are unable to distinguish good men from bad.

- Antisthenes

The most necessary learning is that which unlearns evil.

- Antisthenes

The most useful piece of learning for the uses of life is to unlearn what is untrue.

- Antisthenes

As iron is eaten away by rust, so the envious are consumed by their own passion.

- Antisthenes

As rust corrupts iron, so envy corrupts man.

- Antisthenes