There are three kinds of intelligence: one kind understands things for itself, the other appreciates what others can understand, the third understands neither for itself nor through others. This first kind is excellent, the second good, and the third kind useless.
~ Niccolo Machiavelli (May 03, 1469 - June 21, 1527)
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~ Samuel Johnson (September 18, 1709 - December 13, 1784)