It is absolutely imperative that we protect, preserve and pass on this genetic heritage for man and every other living thing in as good a condition as we received it.

There is more inside you than you dare think.

The Peninsula is what we have and there is no more where it came from.

The Sierra Club is a very good and a very powerful force for conservation and, as a matter of fact, has grown faster since I left than it was growing while I was there! It must be doing something right.

Childbearing should be a punishable crime against society, unless the parents hold a government license. All potential parents should be required to use contraceptive chemicals, the government issuing antidotes to citizens chosen for childbearing.

Have fun saving the world, or you are just going to depress yourself.

True wilderness is where you keep it, and real wilderness experience cannot be a sedentary one; you have to seek it out not seated, but afoot.