A little knowledge is a dangerous thing. So is a lot.

I am indebted to my father for living, but to my teacher for living well.

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.

The progressive development of man is vitally dependent on invention.

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

Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.

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

An investment in knowledge pays the best interest.

The highest result of education is tolerance.

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.

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

Never help a child with a task at which he feels he can succeed.

I have no special talents. I am only passionately curious.

Show me a family of readers, and I will show you the people who move the world.

One test of the correctness of educational procedure is the happiness of the child.

Know what you are talking about.

You can never be overdressed or overeducated.

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

Dare to think for yourself.

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.

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.