If help and salvation are to come, they can only come from the children, for the children are the makers of men.

My weapon is literature

Physics is like sex: sure, it may give some practical results, but that's not why we do it.

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

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.

I do not know how to teach philosophy without becoming a disturber of the peace.

The whole of science is nothing more than a refinement of everyday thinking.

The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.

Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.

Real knowledge is to know the extent of one's ignorance.

It isn't what we don't know that gives us trouble, it's what we know that ain't so.

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

Dare to think for yourself.

Just when I thought there wasn't room enough for another thought in my head, I had this great idea.

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

Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.

Knowledge becomes evil if the aim be not virtuous.

Free the child's potential, and you will transform him into the world.

If I have seen further it is by standing on the shoulders of Giants.

The schools ain't what they used to be and never was.

You can never be overdressed or overeducated.