...learning chiefly in mathematical sciences can so swallow up and fix one's thought, as to possess it entirely for some time; but when that amusement is over, nature will return, and be where it was, being rather diverted than overcome by such speculations.
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An anecdote is related of Sir Anthony Ashley Cooper (1621-1683), who, in speaking of religion, said, "People differ in their discourse and profession about these matters, but men of sense are really but of one religion." To the inquiry of "What religion?" the Earl said, "Men of sense never tell it".
There is no lasting pleasure but contemplation; all others grow flat and insipid upon frequent use; and when a man hath run through a set of vanities, in the declension of his age, he knows not what to do with himself, if he cannot think; he saunters about from one dull business to another, to wear out time; and hath no reason to value Life but because he is afraid of death.