If you're teaching today what you were teaching five years ago, either the field is dead or you are.
Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.
As we acquire more knowledge, things do not become more comprehensible but more mysterious.
If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.
Books are as useful to a stupid person as a mirror is useful to a blind person.
To educate a person in the mind but not in morals is to educate a menace to society.
A little knowledge that acts is worth infinitely more than much knowledge that is idle.
I am indebted to my father for living, but to my teacher for living well.
It is better to know how to learn than to know.
A thought is an idea in transit.
Education is the ability to listen to almost anything without losing your temper or your self-confidence.
Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.
Seek knowledge from the cradle to the grave.
The man who does not read good books has no advantage over the man who can't read them.
Human behavior flows from three main sources: desire, emotion, and knowledge
The more I read, the more I acquire, the more certain I am that I know nothing.
The real solution lies in a world in which charity will have become unnecessary.
I don't look on poetry as closed works. I feel they're going on all the time in my head and I occasionally snip off a length.
It is possible to fly without motors, but not without knowledge and skill.
Men are born ignorant, not stupid. They are made stupid by education.
Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.