At some point we must draw a line across the ground of our home and our being, drive a spear into the land and say to the bulldozers, earthmovers, government and corporations, "thus far and no further." If we do not, we shall later feel, instead of pride, the regret of Thoreau, that good but overly-bookish man, who wrote, near the end of his life, "If I repent of anything it is likely to be my good behaviour.

Strolling on, it seems to me that the strangeness and wonder of existence are emphasized here, in the desert, by the comparative sparsity of the flora and fauna: life not crowded upon life as in other places but scattered abroad in spareness and simplicity, with a generous gift of space for each herb and bush and tree, each stem of grass, so that the living organism stands out bold and brave and vivid against the lifeless sand and barren rock. The extreme clarity of the desert light is equaled by the extreme individuation of desert life-forms. Love flowers best in openness and freedom.

Do not burn yourselves out. Be as I am - a reluctant enthusiast... a part-time crusader, a half-hearted fanatic. Save the other half of yourselves and your lives for pleasure and adventure.

Everyone should learn a manual trade: It's never too late to become an honest person.

Nature is indifferent to our love, but never unfaithful.

My own best books have not been published. In fact, they've not even been written yet.

Representative government has broken down. Our politicians represent not the people who vote for them but the commercial interests who finance their election campaigns. We have the best politicians that money can buy.