One citizen differs from another, but the salvation of the community is the common business of them all. This community is the constitution; the virtue of the citizen must therefore be relative to the constitution of which he is a member.

Find the good. Seek the Unity. Ignore the divisions among us.

So, if we must give a general formula applicable to all kinds of soul, we must describe it as the first actuality [entelechy] of anatural organized body.

Thou wilt find rest from vain fancies if thou doest every act in life as though it were thy last.

Be a free thinker and don't accept everything you hear as truth. Be critical and evaluate what you believe in.

In inventing a model we may assume what we wish, but should avoid impossibilities.

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.