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.

Prayer may be elevating if combined with work, and they who labor with head, hands or feet have faith and are generally quite sure of an immediate and favorable reply.

As a scientist I cannot help feeling that all religions are on a tottering foundation. None is perfect or inspired. As for their prophets, there are as many today as ever before, only now science refuses to let them overstep the bounds of common sense.

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.

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

If you violate Nature's laws you are your own prosecuting attorney, judge, jury, and hangman.

In the span of my own lifetime I observed such wondrous progress in plant evolution that I look forward optimistically to a healthy, happy world as soon as its children are taught the principles of simple and rational living.