The end of all one-sided growth is usually catastrophic. This is true of the outer world of science as of the inner world of man himself. If the wonderful achievements of the scientist in controlling physical energies have now become highly dangerous to man, this is simply because they are unbalanced by equal knowledge of his own nature and equal achievement in controlling it.
-- Notebooks Category 11: The Negatives > Chapter 3: Their Presence in The World > # 93
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