The longer we live the more we think and the higher the value we put on friendship and tenderness towards parents and friends.

I look upon this as I did upon the Dictionary: it is all work, and my inducement to it is not love or desire of fame, but the want of money, which is the only motive to writing that I know of.

The labor of rising from the ground will be great, ... but as we mount higher, the earth's attraction, and the body's gravity, will be gradually diminished till we arrive at a region where the man will float in the air without any tendency to fall.

The truly strong and sound mind is the mind that can embrace equally great things and small.

Pain and disease awaken us to convictions which are necessary to our moral condition.

Friendship may well deserve the sacrifice of pleasure, though not of conscience.

It is good sense applied with diligence to what was at first a mere accident, and which by great application grew to be called, by the generality of mankind, a particular genius.