Books are as useful to a stupid person as a mirror is useful to a blind person.

Seek knowledge from the cradle to the grave.

It is beyond a doubt that all our knowledge begins with experience.

The knowledge of all things is possible

To educate a person in the mind but not in morals is to educate a menace to society.

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

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.

The whole of science is nothing more than a refinement of everyday thinking.

Courage, conviction and confidence.

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

I cannot live without books.

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

Real learning comes about when the competitive spirit has ceased.

Don't learn to do, but learn in doing.

Dare to think for yourself.

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

The ability to observe without evaluating is the highest form of intelligence.

Learning never exhausts the mind.

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

Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.

The only true wisdom is in knowing you know nothing.