Wonder is the beginning of wisdom in learning from books as well as from nature.

We are selfish when we are exclusively or predominantly concerned with the good for ourselves. We are altruistic when we are exclusively or predominantly concerned with the good of others.

A good book can teach you about the world and about yourself. You learn more than how to read better; you also learn more about life. You become wiser.

A lecture has been well described as the process whereby the notes of the teacher become the notes of the student without passing through the mind of either.

Love wishes to perpetuate itself. Love wishes for immortality.

... 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.

I find the selectivity of erotic love - the choice of this man or this woman - much more intelligible if liking the person is the origin of sexual interest, rather than the other way.