“Don't eat anything your great-grandmother wouldn't recognize as food.”

“The garden suggests there might be a place where we can meet nature halfway.”

“Anthropocentric as [the gardener] may be, he recognizes that he is dependent for his health and survival on many other forms of life, so he is careful to take their interests into account in whatev...”

“The single greatest lesson the garden teaches is that our relationship to the planet need not be zero-sum, and that as long as the sun still shines and people still can plan and plant, think and do...”

“Tree planting is always a utopian enterprise, it seems to me, a wager on a future the planter doesn't necessarily expect to witness.”

“Seeds have the power to preserve species, to enhance cultural as well as genetic diversity, to counter economic monopoly and to check the advance of conformity on all its many fronts.”

“This is rather as if you imagine a puddle waking up one morning and thinking, 'This is an interesting world I find myself in--an interesting hole I find myself in--fits me rather neatly, doesn't it...”

“We all deserve a love as deep as the oceans. Let us keep our oceans clean and enjoyable for us all.”

“Science fiction is when we see into the future of our planet, fantasy is when we believe humanity will survive.”

“I am glad I will not be young in a future without wilderness.”

“We need the tonic of wildness...At the same time that we are earnest to explore and learn all things, we require that all things be mysterious and unexplorable, that land and sea be indefinitely wi...”

“Something will have gone out of us as a people if we ever let the remaining wilderness be destroyed ... We simply need that wild country available to us, even if we never do more than drive to its ...”