Never leave that till tomorrow which you can do today.

Do not fear mistakes.

If a man could have half of his wishes, he would double his troubles.

If you teach a poor young man to shave himself, and keep his razor in order, you may contribute more to the happiness of his life than in giving him a thousand guineas. This sum may be soon spent, the regret only remaining of having foolishly consumed it; but in the other case, he escapes the frequent vexation of waiting for barbers, and of their sometimes dirty fingers, offensive breaths, and dull razors.

When men differ in opinion, both sides ought equally to have the advantage of being heard by the public; when Truth and Error have fair play, the former is always an overmatch for the latter.

Either write something worth reading or do something worth writing.

I firmly believe this ... that without His concurring aid we shall succeed in this political building no better, than the builders of Babel: We shall be divided by our little partial local interests; our projects will be confounded, and we ourselves shall become a reproach and bye word down to future ages. And what is worse, mankind may hereafter from this unfortunate instance, despair of establishing governments by human wisdom and leave it to chance, war and conquest.