If nature has made you for a giver, your hands are born open, and so is your heart; and though there may be times when your hands are empty, your heart is always full, and you can give things out of that--warm things, kind things, sweet things--help and comfort and laughter--and sometimes gay, kind laughter is the best help of all.

Our tools are better than we are, and grow better faster than we do. They suffice to crack the atom, to command the tides, but they do not suffice for the oldest task in human history, to live on a piece of land without spoiling it.

They paved paradise and put up a parking lot.

Look abroad through Nature's range, Nature's mighty law is change.

Only when there is a wilderness can man harmonize his inner being with the wavelengths of the earth. When the earth, its products, its creatures, become his concern, man is caught up in a cause greater than his own life and more meaningful. Only when man loses himself in an endeavor of that magnitude does he walk and live with humanity and reverence.

The most irrevocable of [natures] laws says that a species cannot occupy a niche that appropriates all resources--there has to be some sharing. Any species that ignores this law winds up destroying its community to support its own expansion.