For to err in opinion, though it be not the part of wise men, is at least human.
For the correct analogy for the mind is not a vessel that needs filling, but wood that needs igniting.
If I were not Alexander, I would be Diogenes.
It is a hard matter, my fellow citizens, to argue with the belly, since it has no ears.
The measure of a man is the way he bears up under misfortune.
If Nature be not improved by instruction, it is blind; if instruction be not assisted by Nature, it is maimed; and if exercise fail of the assistance of both, it is imperfect.