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

What is freedom of expression? Without the freedom to offend, it ceases to exist.

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

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

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.

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

Knowledge becomes evil if the aim be not virtuous.

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.

Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.

Any sufficiently advanced technology is indistinguishable from magic.

What sculpture is to a block of marble, education is to a human soul.

If you want the present to be different from the past, study the past.

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

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.

A child educated only at school is an uneducated child.

If one cannot enjoy reading a book over and over again, there is no use in reading it at all.

The more I read, the more I acquire, the more certain I am that I know nothing.

Physics is like sex: sure, it may give some practical results, but that's not why we do it.

Educate the children and it won't be necessary to punish the men.

I cannot live without books.