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At one with the power of the American landscape, and renowned for the patient skill and timeless beauty of his work, photographer Ansel Adams has been visionary in his efforts to preserve this country's wild and scenic areas, both in film and on Earth. Drawn to the beauty of nature's monuments, he is regarded by environmentalists as a monument himself, and by photographers as a national institution. It is through his foresight and fortitude that so much of America has been saved for future Americans.

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Ronald Ross

The belief is growing on me that the disease is communicated by the bite of the mosquito. . . . She always injects a small quantity of fluid with her bite-what if the parasites get into the system in this manner.

Belief, Growing, Mosquitoes, Parasites, Quantity, What If
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The World requires at least ten years to understand a new idea, however important or simple it may be.

Ideas, Requires, Simple, World, Years

Science is the Differential Calculus of the mind. Art the Integral Calculus; they may be beautiful when apart, but are greatest only when combined.

Art, Beautiful, Mind, Science

The student of biology is often struck with the feeling that historians, when dealing with the rise and fall of nations, do not generally view the phenomena from a sufficiently high biological standpoint. To me, at least, they seem to attach too much importance to individual rulers and soldiers, and to particular wars, policies, religions, and customs; while at the same time they make little attempt to extract the fundamental causes of national success or failure.

Biological, Fall, Same, Science, Success, War

This day relenting God Hath placed within my hand A wondrous thing; and God Be praised. At His command, Seeking His secret deeds With tears and toiling breath, I find thy cunning seeds, O million-murdering Death. I know this little thing A myriad men will save. O Death, where is thy sting? Thy victory, O Grave? Poem he wrote following the discovery that the malaria parasite was carried by the amopheline mosquito.

Discovery, God, Hath, Men, Mosquito, Myriad

The Panama Canal was dug with a microscope.

Canal, Dug, Microscope, Microscopes, Panama Canal, Science
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