If the abuse be enormous, nature will rise up, and claiming her original rights, overturn a corrupt political system.

Man alone is born crying, lives complaining, and dies disappointed.

Language is only the instrument of science, and words are but the signs of ideas.

The use of travelling is to regulate imagination by reality, and instead of thinking how things may be, to see them as they are.

All violation of established practice implies in its own nature a rejection of the common opinion, a defiance of common censure, and an appeal from general laws to private judgment: he, therefore, who differs form others without apparent advantage, ought not to be angry if his arrogance is punished with ridicule; if those whose example he superciliously overlooks, point him out to derision, and hoot him back again into the common road.

There is certainly no greater happiness than to be able to look back on a life usefully and virtuously employed, to trace our own progress in existence, by such tokens as excite neither shame nor sorrow.

Exercise is labor without weariness.