We must not let our rulers load us with perpetual debt.

I do most anxiously wish to see the highest degrees of education given to the higher degrees of genius and to all degrees of it, so much as may enable them to read and understand what is going on in the world and to keep their part of it going on right; for nothing can keep it right but their own vigilant and distrustful superintendence.

The sovereign invigorator of the body is exercise, and of all the exercises walking is the best.

Travelling. ... when men of sober age travel, they gather knowlege which they may apply usefully for their country

The good opinion of mankind, like the lever of Archimedes, with the given fulcrum, moves the world.

My principle is to do whatever is right, and leave consequences to him who has the disposal of them.

Man is fed with fables through life, and leaves it in the belief he knows something of what has been passing, when in truth he knows nothing but what has passed under his own eyes.