By asking why, by seeking meaning {not in any final sense, but in the immediate sense of use or purpose}, Darwin found in his botanical work the strongest evidence for evolution and natural selection. And in doing so, he transformed botany itself from a purely descriptive discipline into an evolutionary science. Botany, indeed, was the first evolutionary science, and Darwin's botanical work was to lead the way to all the other evolutionary sciences-and to the insight, as Theodosius Dobzhansky put it, that "nothing in biology makes sense except in the light of evolution.
( Oliver Sacks )
[ The River of Consciousness ]
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