I love a life whose plot is simple.

What stuff is the man made of who is not coexistent in our thought with the purest and sublimest truth?

What is commonly called friendship is only a little more honor among rogues.

It is difficult to begin without borrowing, but perhaps it is the most generous course thus to permit your fellowmen to have an interest in your enterprise.

The process of discovery is very simple. An unwearied and systematic application of known laws to nature, causes the unknown to reveal themselves. Almost any mode of observation will be successful at last, for what is most wanted is method.

If you indulge in long periods, you must be sure to have a snapper at the end.

To anticipate, not the sunrise and the dawn merely, but, if possible, Nature herself! How many mornings, summer and winter, before yet any neighbor was stirring about his business, have I been about mine...So many autumn, ay, and winter days, spent outside the town, trying to hear what was in the wind, to hear and carry it express! I well-nigh sunk all my capital in it, and lost my own breath into the bargain, running in the face of it.