Aristotle uses a mother's love for her child as the prime example of love or friendship.

Love consists in giving without getting in return; in giving what is not owed, what is not due the other. That's why true love is never based, as associations for utility or pleasure are, on a fair exchange.

There is no more irritating fellow than the man who tries to settle an argument about communism, or justice, or liberty, by quoting from Webster.

Not to engage in this pursuit of ideas is to live like ants instead of like men.

It's not how many books you get through, it's how many books get through you.

... The person who, at any stage of a conversation, disagrees, should at least hope to reach agreement in the end. He should be as much prepared to have his own mind changed as seek to change the mind of another ... No one who looks upon disagreement as an occasion for teaching another should forget that it is also an occasion for being taught.

Men value things in three ways: as useful, as pleasant or sources of pleasure, and as excellent, or as intrinsically admirable or honorable.