We have forgotten how to be good guests, how to walk lightly on the earth as its other creatures do.

We cannot cheat on DNA. We cannot get round photosynthesis. We cannot say I am not going to give a damn about phytoplankton. All these tiny mechanisms provide the preconditions of our planetary life. To say we do not care is to say in the most literal sense that "we choose death."

We have forgotten how to be good guests, how to walk lightly on the earth as its other creatures do.

Business shouldn't be like sports, separating the men from the women.

if we continue with what is surely our greatest Western temptation, and think that in some way history owes us a solution, that we can, by pursuing our own most parochial self-interest, achieve in some miraculous way a consummation of world order, then we are heading not simply towards great disappointments, but towards disaster and tragedy as well.

It is only when people begin to shake loose from their preconceptions, from the ideas that have dominated them, that we begin to receive a sense of opening, a sense of vision...That is the sort of time we live in now. We...live in an epoch in which the solid ground of our preconceived ideas shakes daily under our uncertain feet.

Jews were the first to believe that history itself has meaning and that progress, not repetition, is the law of life.