The problem with common sense is, it isn't.

None but the well-bred man knows how to confess a fault, or acknowledge himself in an error.

Nothing great comes without enthusiasm.

Experience keeps a dear school, but fools will learn in no other.

Wouldst thou enjoy a long Life, a healthy Body, and a vigorous Mind, and be acquainted also with the wonderful Works of God? labour in the first place to bring thy Appetite into Subjection to Reason.

We are spirits. That bodies should be lent us while they afford us pleasure, assist us in acquiring knowledge or in doing good to our fellow-creatures, is a kind of benevolent act of God. When they become unfit for these purposes and afford us pain instead of pleasure, instead of an aid become an encumbrance and answer none of these intentions for which they were given, it is equally kind and benevolent that a way is provided by which we get rid of them. Death is that way.

Do good to thy friend to keep him, to thy enemy to gain him.