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

A spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals.

Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught.

Real learning comes about when the competitive spirit has ceased.

The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.

It is not enough for the teacher to love the child. She must first love and understand the universe. She must prepare herself, and truly work at it.

What we know is a drop, what we don't know is an ocean.

I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.

Necessity is the mother of invention.

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.

All stable processes we shall predict. All unstable processes we shall control.

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

Evil being the root of mystery, pain is the root of knowledge.

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

All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.

Patience is a virtue, and I'm learning patience. It's a tough lesson.

There is nothing more awful, insulting, and depressing than banality.

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

Learning never exhausts the mind.

To every action there is always an equal and opposite or contrary, reaction

Imagination is more important than knowledge.