The irony is that science has served only to show how small human knowledge is.

Gradually I came to realize that the process of saving the desert of the human heart and revegetating the actual desert is actually the same thing.

The increasing desolation of nature, the exhaustion of resources, the uneasiness and disintegration of the human spirit, all have been brought about by humanity's trying to accomplish something.

Farming is not just for growing crops, it is for the cultivation...o f human beings!

Before researchers become researches they should become philosophers.

Ignorance, hatred and greed are killing nature.

Weeds play an important part in building soil fertility and in balancing the biological community . . .