We are double-edged blades, and every time we whet our virtue the return stroke straps our vice. Where is the skillful swordsman who can give clean wounds, and not rip up his work with the other edge?
Henry David ThoreauHow important is a constant intercourse with nature and the contemplation of natural phenomena to the preservation of moral and intellectual health!
Henry David ThoreauWith a little more deliberation in the choice of their pursuits, all men would perhaps become essentially students and observers, for certainly their nature and destiny are interesting to all alike.
Henry David Thoreau