“I study myself more than any other subject. That is my metaphysics, that is my physics.”

A wise man sees as much as he ought, not as much as he can.

There is no conversation more boring than the one where everybody agrees.

The soul which has no fixed purpose in life is lost; to be everywhere, is to be nowhere.

Ambition is not a vice of little people.

Marriage is like a cage; one sees the birds outside desperate to get in, and those inside equally desperate to get out.

Nothing is so firmly believed as what we least know.

Stubborn and ardent clinging to one’s opinion is the best proof of stupidity.

It is the mind that maketh good or ill, That maketh wretch or happy, rich or poor.

A good marriage would be between a blind wife and a deaf husband.

We can be knowledgable with other men’s knowledge but we cannot be wise with other men’s wisdom.

The public weal requires that men should betray, and lie, and massacre.

There is no passion so contagious as that of fear.

How many things we held yesterday as articles of faith which today we tell as fables.

Let us not be ashamed to speak what we shame not to think.

The prank of a page- boy, the blunder of a servant, a bit of table talk – they are all part of the curriculum.

I care not so much what I am to others as what I am to myself. I will be rich by myself, and not by borrowing.