“Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.”
Source: Silent Spring
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Rachel Carson 42
American marine biologist and conservationist 1907–1964Related quotes

East of Eden (1952)
Context: Our species is the only creative species, and it has only one creative instrument, the individual mind and spirit of a man. Nothing was ever created by two men. There are no good collaborations, whether in art, in music, in poetry, in mathematics, in philosophy. Once the miracle of creation has taken place, the group can build and extend it, but the group never invents anything. The preciousness lies in the lonely mind of a man.
And now the forces marshaled around the concept of the group have declared a war of extermination on that preciousness, the mind of man. By disparagement, by starvation, by repressions, forced direction, and the stunning blows of conditioning, the free, roving mind is being pursued, roped, blunted, drugged. It is a sad suicidal course our species seems to have taken.
And this I believe: that the free, exploring mind of the individual human is the most valuable thing in the world. And this I would fight for: the freedom of the mind to take any direction it wishes, undirected. And this I must fight against: any religion, or government which limits or destroys the individual. This is what I am and what I am about. I can understand why a system built on a pattern must try to destroy the free mind, for it is the one thing which can by inspection destroy such a system. Surely I can understand this, and I hate it and I will fight against it to preserve the one thing that separates us from the uncreative beasts. If the glory can be killed, we are lost.

Source: Humanity Comes of Age, A study of Individual and World Fulfillment (1950), Introduction p. I - XII
The Desiring Machine
Anti-Oedipus Capitalism and Schizophrenia (1977)

Source: Accepting the Universe (1920), p.261

The Virtue of Selfishness (1964)
Source: The Virtue of Selfishness: A New Concept of Egoism

Source: The God of Jane: A Psychic Manifesto (1981), p. 203