If the facts don't fit the theory, change the facts.

Industrialize or perish.

The most important part of teaching is to teach what it is to know.

A man who has never gone to school may steal a freight car; but if he has a university education, he may steal the whole railroad.

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

Knowledge becomes evil if the aim be not virtuous.

Seek knowledge from the cradle to the grave.

The knowledge of all things is possible

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

Human behavior flows from three main sources: desire, emotion, and knowledge

Common sense is the collection of prejudices acquired by age eighteen.

The reading of all good books is like conversation with the finest men of past centuries.

You can never be overdressed or overeducated.

Dare to think for yourself.

No power and no treasure can outweigh the extension of our knowledge.

Knowing others is wisdom, knowing yourself is Enlightenment.

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

Men are born ignorant, not stupid. They are made stupid by education.

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

A little knowledge that acts is worth infinitely more than much knowledge that is idle.

Knowing is not enough; we must apply. Willing is not enough; we must do.