... 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.

The truly great books are the few books that are over everybody's head all of the time.

In the case of good books, the point is not to see how many of them you can get through, but how many can get through to you.

The telephone book is full of facts, but it doesn't contain a single idea.

The teacher's role in discussion is to keep it going along fruitful lines - be moderating, guiding, correcting and arguing like one more students.

If one wants another only for some self-satisfaction, usually in the form of sensual pleasure, that wrong desire takes the form of lust rather than love.

The materialist assumption that spiritual substances do not exist is as much an act of faith as the religious belief in the reality of angels.