Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.
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.
You cannot, by all the lecturing in the world, enable a man to make a shoe.
Lectures were once useful; but now when all can read, and books are so numerous, lectures are unnecessary.