“There is a certain standard of grace and beauty which consists in a certain relation between our nature... and the thing which pleases us.”

“This cancer of the mind which consists of thinking all too sadly that certain things ‘are,’ while others, which well might be, ‘are not.”

“Nature consists of facts and of regularities, and is in itself neither moral nor immoral. It is we who impose our standards upon nature, and who in this way introduce morals into the natural world, in spite the fact that we are part of this world. We are products of nature, but nature has made us together with our power of altering the world, of foreseeing and of planning for the future, and of making far-reaching decisions for which we are morally responsible. Yet, responsibility, decisions, enter the world of nature only with us”

“Machines deprive us of two things which are certainly important ingredients of human happiness, namely, spontaneity and variety.”

“There are certain natures which cannot have love on one side without hatred on the other.”

“the first quality of an honest man is contempt for religion, which would have us afraid of the most natural thing in the world, which is death; and would have us hate the one beautiful thing destiny has given us, which is life.”