Moreover, the practical recommendations deduced from ecological principles threaten the vested interests of commerce; it is hardly surprising that the financial and political power created by these investments should be used sometimes to suppress environmental impact studies.

The god who is reputed to have created fleas to keep dogs from moping over their situation must also have created fundamentalists to keep rationalists from getting flabby. Let us be duly thankful for out blessings.

We see only what we have names for.

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.

An attack on values is inevitably seen as an act of subversion.

You cannot do only one thing.