What is called common sense is excellent in its department, and as invaluable as the virtue of conformity in the army and navy,--for there must be subordination,--but uncommon sense, that sense which is common only to the wisest, is as much more excellent as it is more rare.

None can lead this life who are not almost amphibious.

Open all your pores and bathe in all the tides of nature, in all her streams and oceans, at all seasons.

As for my own business, even that kind of surveying which I could do with most satisfaction my employers do not want. They would prefer that I should do my work coarsely and not too well, ay, not well enough. When I observe that there are different ways of surveying, my employer commonly asks which will give him the most land, not which is most correct.

A person who chooses to die or to risk death demonstrates that there are values, principles, maxims, that are more valuable to him than is life itself. In short, he places his immortal self above his mortal self. Nothing goes by luck in composition. It allows of no tricks. The best you can write will be the best you are.

The more you have thought and written on a given theme, the more you can still write. Thought breeds thought. It grows under your hands.

All sensuality is one, though it takes many forms; all purity is one. It is the same whether a man eat, or drink, or cohabit, or sleep sensually. They are but one appetite, and we only need to see a person do any one of these things to know how great a sensualist he is. The impure can neither stand nor sit with purity.