Opinion is the medium between knowledge and ignorance.

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

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

The progressive development of man is vitally dependent on invention.

Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.

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

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

The secret of life is not enjoyment but education through experience.

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

Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.

The first principle is that you must not fool yourself and you are the easiest person to fool.

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

Education is the ability to listen to almost anything without losing your temper or your self-confidence.

Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.

Any sufficiently advanced technology is indistinguishable from magic.

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

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

In mathematics you don't understand things. You just get used to them.

Necessity is the mother of invention.

Many much-learned men have no intelligence.

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