My joy in learning is partly that it enables me to teach.
Enjoy present pleasures in such a way as not to injure future ones.
You talk one way, you live another.
Truth will never be tedious unto him that travelleth in the secrets of nature; there is nothing but falsehood that glutteth us.
Hardly a man will you find who could live with his door open.
Tis a human trait to hate one you have wronged