"From the seed grows a root, then a sprout; from the sprout, the seedling leaves; from the leaves, the stem; around the stem, the branches; at the top, the flower. . . We cannot say that the seed causes the growth, nor that the soil does. We can say that the potentialities for growth lie within the seed, in mysterious life forces, which, when properly fostered, take on certain forms."

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I take it that a monograph of this sort belongs to the ephemera literature of science. The studied care which is warranted in the treatment of the more slowly moving branches of science would be out of place here. Rather with the pen of a journalist we must attempt to record a momentary phase of current thought, which may at any instant change with kaleidoscopic abruptness.

— Gilbert N. Lewis