Necessity
Some implications of the displacement current follow, which agree with experimental observation, and with the requirements of logical consistency for the theory of electromagnetism.
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Famous quotes containing the word necessity:
“I want the necessity of supplying my own wants. All this costly culture of yours is not necessary. Greatness does not need it. Yonder peasant, who sits neglected, carries a whole revolution of man and nature in his head, which shall be a sacred history to some future ages.”
—Ralph Waldo Emerson (1803–1882)
“Old-fashioned determinism was what we may call hard determinism. It did not shrink from such words as fatality, bondage of the will, necessitation, and the like. Nowadays, we have a soft determinism which abhors harsh words, and, repudiating fatality, necessity, and even predetermination, says that its real name is freedom; for freedom is only necessity understood, and bondage to the highest is identical with true freedom.”
—William James (1842–1910)