"Ruin is the destination toward which all men rush, each pursuing his own best interest in a society that believes in the freedom of the commons."

"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."

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

"Education can counteract the natural tendency to do the wrong thing, but the inexorable succession of generations requires that the basis for this knowledge be constantly refreshed."

"Observe constantly that all things take place by change, and accustom thyself to consider that the nature of the Universe loves nothing so much as to change the things which are, and to make new things like them."

"A resilient spirit knows that a single moment of clarity can change a lifetime."

"Every time I hear, Cut. Print, something cold and electrical goes off in my head, because I'm never going to change that film."

"We are like a woman with a difficult pregnancy. We have to rebuild the social classes in Egypt, and we must change the way things were."