“Just as the natural environment depends on biodiversity, so the human environment depends on cultural diversity, because no one civilization encompasses all the spiritual, ethical and artistic expressions of mankind.”

“Human nature is so constituted that the propensity for evil is always intensified by external circumstances, and the morality of the individual depends much more on the conditions of his existence and the environment in which he lives than on his own will. ”

“Self-confidence depends on environment: one does not speak in the same tone in the drawing room than in the kitchen.”

“We don't understand the power of nature and the world because we don't live with it. Our environment is designed to sustain us. We are the domestic pets of a human zoo called civilization.”

“Humanity is a biological species, living in a biological environment, because like all species, we are exquisitely adapted in everything: from our behavior, to our genetics, to our physiology, to that particular environment in which we live. The earth is our home. Unless we preserve the rest of life, as a sacred duty, we will be endangering ourselves by destroying the home in which we evolved, and on which we completely depend.”

“Every psychological event depends upon the state of the person and at the same time on the environment, although their relative importance is different in different cases”