„We can lift ourselves out of ignorance, we can find ourselves as creatures of excellence and intelligence and skill.“

— Richard Bach

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„If we blow ourselves up we will do it by misapplication of science; if we manage to keep from blowing ourselves up, it will be through intelligent application of science.“
— Robert A. Heinlein
„We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet.“
— Stephen Hawking