With educated people, I suppose, punctuation is a matter of rule; with me it is a matter of feeling. But I must say I have great respect for the semi-colon; it's a useful little chap.

Knowledge becomes evil if the aim be not virtuous.

Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.

Real learning comes about when the competitive spirit has ceased.

It is beyond a doubt that all our knowledge begins with experience.

Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.

If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.

Science is a rising force, It is creating a new world about us. It needs to be watched and pressed into service, and in any case, it would be courting disaster to ignore it.

Don't worry that children never listen to you; worry that they are always watching you.

Knowing others is wisdom, knowing yourself is Enlightenment.

A little knowledge is a dangerous thing. So is a lot.

Books! I dunno if I ever told you this, but books are the greatest gift one person can give another.

They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.

There is nothing more notable in Socrates than that he found time, when he was an old man, to learn music and dancing, and thought it time well spent.

There is no authority who decides what is a good idea.

Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

The man who does not read good books has no advantage over the man who can't read them.

The real solution lies in a world in which charity will have become unnecessary.

Education is a system of imposed ignorance.

No man's knowledge here can go beyond his experience.

If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.