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.

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.

Flowers always make people better, happier, and more helpful; they are sunshine, food and medicine for the soul.

Science is knowledge arranged and classified according to truth, facts, and the general laws of nature.

We must return to nature and nature's god.

The lure of happiness and the fear of pain . . . are the two forces which have through untold millenniums kept what we usually call life from destruction by the ever encroaching outside forces of destruction.

Obsolete misleading theologies bear the same relation to the essence of true religion that scarlet fever, mumps, and measles do to education.