A coldly rationalist individualist can deny that he has any obligation to make sacrifices for the future.

Continuity is at the heart of conservatism: ecology serves that heart.

Economists (and others) who are satisfied with nature-free equations develop a dangerous hubris about the potency of our species

The exquisite sight, sound, and smell of wilderness is many times more powerful if it is earned through physical achievement, if it comes at the end of a long and fatiguing trip for which vigorous good health is necessary. Practically speaking, this means that no one should be able to enter a wilderness by mechanical means.

But as population became denser, the natural chemical and biological recycling processes became overloaded, calling for a redefinition of property rights.

A finite world can support only a finite population; therefore, population growth must eventually equal zero.

The greatest folly is to accept expert statements uncritically. At the very least, we should always seek another opinion.