The supreme end of education is expert discernment in all things--the power to tell the good from the bad, the genuine from the counterfeit, and to prefer the good and the genuine to the bad and the counterfeit.
Where there is no hope, there can be no endeavor.
Being reproached for giving to an unworthy person, Aristotle said, "I did not give it to the man, but to humanity."
Ignorance, when voluntary, is criminal, and a man may be properly charged with that evil which he neglected or refused to learn how to prevent.
Knowledge always desires increase; it is like fire, which must first be kindled by some external agent, but which will afterward propagate it.