A friend is a second self, so that our consciousness of a friend's existence...makes us more fully conscious of our own existence.

-Aristotle
Aristotle

Nature does nothing in vain.

Aristotle
[I]t is rather the case that we desire something because we believe it to be good than that we believe a thing to be good because we desire it. It is the thought that starts things off.
Aristotle

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?

Aristotle
A constitution is the arrangement of magistracies in a state.
Aristotle

In seeking for justice men seek for the mean or neutral, for the law is the mean. Again, customary laws have more weight, and relate to more important matters, than written laws, and a man may be a safer ruler than the written law, but not safer than the customary law.

Aristotle
The misanthrope, as an essentially solitary man, is not a man at all: he must be a beast or a god...
Aristotle

Men pay most attention to what is their own: they care less for what is common; or, at any rate, they care for it only to the extent to which each is individually concerned.

Aristotle
These, then, are the four kinds of royalty. First the monarchy of the heroic ages; this was exercised over voluntary subjects, but limited to certain functions; the king was a general and a judge, and had the control of religion The second is that of the barbarians, which is a hereditary despotic government in accordance with law. A third is the power of the so-called Aesynmete or Dictator; this is an elective tyranny. The fourth is the Lacedaemonian, which is in fact a generalship, hereditary and perpetual.
Aristotle

We have no evidence as yet about mind or the power to think; it seems to be a widely different kind of soul, differing as what is eternal from what is perishable; it alone is capable of existence in isolation from all other psychic powers.

Aristotle
But what is happiness? If we consider what the function of man is, we find that happiness is a virtuous activity of the soul.