The ultimate end...is not knowledge, but action. To be half right on time may be more important than to obtain the whole truth too late.

To be conscious that we are perceiving or thinking is to be conscious of our own existence.

It is simplicity that makes the uneducated more effective than the educated when addressing popular audiences.

Education is an ornament in prosperity and a refuge in adversity.

Xenophanes states that the fire in Lipara once failed for sixteen years, but returned in the seventeenth year. They say that the lava-stream in Etna is neither flaming nor continuous, but returns only after an interval of many years.

We become just by the practice of just actions.

But is it just then that the few and the wealthy should be the rulers? And what if they, in like manner, rob and plunder the people, - is this just?