Give me 26 lead soldiers and I will conquer the world.

There is scarce a king in a hundred who would not, if he could, follow the example of Pharoah - get first all the people's money, then all their lands, and then make them and their children servants forever.

Furnished as all Europe now is with Academies of Science, with nice instruments and the spirit of experiment, the progress of human knowledge will be rapid and discoveries made of which we have at present no conception. I begin to be almost sorry I was born so soon, since I cannot have the happiness of knowing what will be known a hundred years hence.

Industry need not wish.

Chess teaches foresight, by having to plan ahead; vigilance, by having to keep watch over the whole chess board; caution, by having to restrain ourselves from making hasty moves; and finally, we learn from chess the greatest maxim in life - that even when everything seems to be going badly for us we should not lose heart, but always hoping for a change for the better, steadfastly continue searching for the solutions to our problems.

Slavery is ...an atrocious debasement of human nature.

My refusing to eat meat occasioned inconveniency, and I have been frequently chided for my singularity. But my light repast allows for greater progress, for greater clearness of head and quicker comprehension.