If there is such a thing as a good marriage, it is because it resembles friendship rather than love.

Man (in good earnest) is a marvellous vain, fickle, and unstable subject, and on whom it is very hard to form any certain and uniform judgment.

A man must become wise at his own expense.

I see this evident, that we willingly accord to piety only the services that flatter our passions.

He that I am reading seems always to have the most force.

Since I would rather make of him an able man than a learned man, I would also urge that care be taken to choose a guide with a well-made rather than a well-filled head.

To philosophize is to learn to die.