Real knowledge is to know the extent of one's ignorance.
If help and salvation are to come, they can only come from the children, for the children are the makers of men.
The first principle is that you must not fool yourself and you are the easiest person to fool.
Learning gives creativity, Creativity leads to thinking, Thinking provides knowledge, Knowledge makes you great.
Physics is like sex: sure, it may give some practical results, but that's not why we do it.
Reading without reflecting is like eating without digesting.
Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.
Civilization is a race between disaster and education.
Just when I thought there wasn't room enough for another thought in my head, I had this great idea.
Industrialize or perish.
If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.
The ability to observe without evaluating is the highest form of intelligence.
You can never learn less, you can only learn more.
Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.
As we acquire more knowledge, things do not become more comprehensible but more mysterious.
Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.
An investment in knowledge pays the best interest.
Education is our passport to the future, for tomorrow belongs to the people who prepare for it today.
No man's knowledge here can go beyond his experience.
Real learning comes about when the competitive spirit has ceased.
What we know is a drop, what we don't know is an ocean.