Education is our passport to the future, for tomorrow belongs to the people who prepare for it today.

That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.

I learned very early the difference between knowing the name of something and knowing something.

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

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

Many much-learned men have no intelligence.

Necessity is the mother of invention.

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

The most savage controversies are those about matters as to which there is no good evidence either way.

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

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

Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.

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

All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.

Any sufficiently advanced technology is indistinguishable from magic.

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

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

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

I prefer the company of peasants because they have not been educated sufficiently to reason incorrectly.

Education is an ornament for the prosperous, a refuge for the unfortunate.

I am so clever that sometimes I don't understand a single word of what I am saying.