He insisted that education is the true foundation of virtue, for, if we know what is good, we shall incline to do it.

We must trust to sense, to furnish the data of knowledge, and reason will suitably combine them.

In this the affinity of Zeno to Aristotle is plainly seen.

Every appetite, lust, desire, springs from imperfect knowledge.

Our nature is imposed upon us by Fate, but we must learn to control our passions, and live free, intelligent, virtuous, in all things in accordance with reason.