If we had paid no more attention to our plants than we have to our children, we would now be living in a jungle of weed.

Heredity: the traits that a disobedient child gets from the other parent.

Science is the only savior.

I have seen myself lose intolerance, narrowness, bigotry, complacence, pride and a whole bushel-basket of other intellectual vices through my contact with Nature and with men. And when you take weeds out of a garden it gives you room to grow flowers. So, every time I lost a little self-satisfaction, or arrogance, I could plant some broadness or love of my own in its place, and after a while the garden of my mind began to bloom and be fragrant and I found myself better equipped for my work and more useful to others as a consequence.

I see humanity now as one vast plant, needing for its highest fulfillment only love, the natural blessings of the great outdoors, and intelligent crossing and selection.

I am an infidel. I know what an infidel is, and that's what I am.

Religion grows with the intelligence of man, but all religions of the past and probably all of the future will sooner or later become petrified forms instead of living helps to mankind. Until that time comes, however, if religion of any name or nature makes man more happy, comfortable, and able to live peaceably with his brothers, it is good.