The "second sight" possessed by the Highlanders in Scotland is actually a foreknowledge of future events. I believe they possess this gift because they don't wear trousers.

Nowadays beautiful women are counted among the talents of their husbands.

We now possess four principles of morality: 1) a philosophical: do good for its own sake, out of respect for the law; 2) a religious: do good because it is God's will, out of love of God; 3) a human: do good because it will promote your happiness, out of self-love; 4) a political: do good because it will promote the welfare of the society of which you are a part, out of love of society having regard to yourself. But is this not all one single principle, only viewed from different sides?

Astronomy is perhaps the science whose discoveries owe least to chance, in which human understanding appears in its whole magnitude, and through which man can best learn how small he is.

Many a man who is willing to be shot for his belief in a miracle would have doubted, had he been present at the miracle itself.

What we have to discover for ourselves leaves behind in our mind a pathway that can be used on another occasion.

The course of the seasons is a piece of clockwork, with a cuckoo to call when it is spring.