The father who does not teach his son his duties is equally guilty with the son who neglects them.
If names be not correct, language is not in accordance with the truth of things.
With a heavy load and a long journey
If I give a student one-fourth of what he should know, I expect him to get the other three-fourths himself, otherwise I do not want him as a student.
He who cannot describe the problem will never find the solution to that problem.
A great man is hard on himself; a small man is hard on others.