Innate mechanisms endow the visual system with highly specific connections, but visual experience early in life is necessary for their maintenance and full development. Deprivation experiments demonstrate that neural connections can be modulated by environmental influences during a critical period of postnatal development.
Copy QuoteNever doubt that a small group of thoughtful, committed citizens can change the world; indeed, it's the only thing that ever has.
Copy Quote View & ShareSooner or later, we will have to recognise that the Earth has rights, too, to live without pollution. What mankind must know is that human beings cannot live without Mother Earth, but the planet can live without humans.
Copy Quote View & ShareWater and air, the two essential fluids on which all life depends, have become global garbage cans.
Copy Quote View & ShareWe're running the most dangerous experiment in history right now, which is to see how much carbon dioxide the atmosphere... can handle before there is an environmental catastrophe.
Copy Quote View & ShareWhen we try to pick out anything by itself, we find it hitched to everything else in the universe.
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