The whole body of what is now called moral or ethical truth existed in the golden age as abstract science. Or, if we prefer, we may say that the laws of Nature are the purest morality.
Henry David ThoreauThere may be an excess of cultivation as well as of anything else, until civilization becomes pathetic. A highly cultivated man,--all whose bones can be bent! whose heaven-born virtues are but good manners!
Henry David ThoreauThe poet uses the results of science and philosophy, and generalizes their widest deductions.
Henry David ThoreauEconomy is a subject which admits of being treated with levity, but it cannot so be disposed of.
Henry David ThoreauNature has many scenes to exhibit, and constantly draws a curtain over this part or that. She is constantly repainting the landscape and all surfaces, dressing up some scene for our entertainment. Lately we had a leafy wilderness; now bare twigs begin to prevail, and soon she will surprise us with a mantle of snow. Some green she thinks so good for our eyes that, like blue, she never banishes it entirely from our eyes, but has created evergreens.
Henry David Thoreau