The progressive development of man is vitally dependent on invention.

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.

Don't learn to do, but learn in doing.

My alma mater was books, a good library.... I could spend the rest of my life reading, just satisfying my curiosity.

When I am attacked by gloomy thoughts, nothing helps me so much as running to my books. They quickly absorb me and banish the clouds from my mind.

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.

Investigate, educate and organize the country must progress, productive works and industries are the main avenues at present next to education for the advancement of the country

Make it a rule never to give a child a book you would not read yourself.

If you can't explain it simply, you don't understand it well enough.

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

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

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

Necessity is the mother of invention.

Those who fail to learn the lessons of history are doomed to repeat them.

The only true wisdom is in knowing you know nothing.

Real learning comes about when the competitive spirit has ceased.

Education is a system of imposed ignorance.

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

The man who is fond of books is usually a man of lofty thought, and elevated opinions.

Science is not only a disciple of reason but, also, one of romance and passion.

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