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Ignorance more frequently begets confidence than does knowledge: it is those who know little, not those who know much, who so positively assert that this or that problem will never be solved by science.

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The most wonderful discovery made by scientists is science itself.

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If I have seen further it is by standing on the shoulders of Giants

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Imagine a world without Darwin. Imagine a world in which Charles Darwin and Alfred Russel Wallace had not transformed our understanding of living things. What... would become baffling and puzzling..., in urgent need of explanation? The answer is: practically everything about living things....

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The theory of evolution is outstandingly the most important theory in biology.

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Knowledge is an unending adventure at the edge of uncertainty.

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Look not mournfully into the past. It comes not back again. Wisely improve the present. It is thine. Go forth to meet the shadowy future, without fear.

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In the struggle for survival, the fittest win out at the expense of their rivals because they succeed in adapting themselves best to their environment.

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Man with all his noble qualities, with sympathy which feels for the most debased, with benevolence which extends not only to other men but to the humblest living creature, with his god-like intellect which has penetrated into the movements and constitution of the solar system- with all these exalted powers- Man still bears in his bodily frame the indelible stamp of his lowly origin.

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Only a scientific people can survive in a scientific future.

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