Knowledge becomes evil if the aim be not virtuous.

Necessity is the mother of invention.

There is nothing more awful, insulting, and depressing than banality.

The highest activity a human being can attain is learning for understanding, because to understand is to be free.

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

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

Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is the most important.

Imagination is more important than knowledge.

The real solution lies in a world in which charity will have become unnecessary.

The great difficulty in education is to get experience out of ideas.

There is one quality which one must possess to win, and that is definiteness of purpose, the knowledge of what one wants, and a burning desire to possess it.

I cannot live without books.

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

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

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

You can never learn less, you can only learn more.

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.

Common sense is the collection of prejudices acquired by age eighteen.

Education is the kindling of a flame, not the filling of a vessel.

A thought is an idea in transit.

Know what you are talking about.