Experience is the best teacher, but a fool will learn from no other.

If you would have a faithful servant, and one that you like, serve yourself.

Blame-all and Praise-all are two blockheads.

Love your Neighbour; yet don't pull down your Hedge.

The rapid progress of the sciences makes me sorry, at times, that I was born so soon. Imagine the power that man will have over matter, a few hundred years from now. We may learn how to remove gravity from large masses, and float them over great distances. Agriculture will double its produce with less labor. All diseases will surely be cured... even old age. If only the moral sciences could be improved as well. Perhaps men would cease to be wolves to one another... and human beings could learn to be human.

Use now and then a little Exercise a quarter of an Hour before Meals, as to swing a Weight, or swing your Arms about with a small Weight in each Hand; to leap, or the like, for that stirs the Muscles of the Breast.

My dear friend, do not imagine that I am vain enough to ascribe our success [Revolution] to any superiority . . . If it had not been for the justice of our cause, and the consequent interposition of Providence, in which we had faith, we must have been ruined. If I had ever before been an atheist, I should now have been convinced of the being and government of a Deity!