Science does not need mysticism and mysticism does not need science but man needs both.

When the concept of human spirit is understood as the mode of consciousness in which the individual feels connected to the Cosmos as a whole, it becomes clear that ecological awareness is spiritual in its deepest sense.

Doing work which has to be done over and over again helps us recognize the natural cycles of growth and decay, of birth and death, and thus become aware of the dynamic order of the universe. "Ordinary" work, as the root meaning of the term indicates, is work that is in harmony with the order we perceive in the natural environment.

Whenever the essential nature of things is analysed by the intellect, it must seem absurd or paradoxical. This has always been recognized by the mystics, but has become a problem in science only very recently.

Mystics understand the roots of the Tao but not its branches; scientists understand its branches but not its roots. Science does not need mysticism and mysticism does not need science; but man needs both.

In the end, the aggressors always destroy themselves, making way for others who know how to cooperate and get along. Life is much less a competitive struggle for survival than a triumph of cooperation and creativity.

Ecology and spirituality are fundamentally connected, because deep ecological awareness, ultimately, is spiritual awareness.