Opinion is the medium between knowledge and ignorance.

The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.

A man who has never gone to school may steal a freight car; but if he has a university education, he may steal the whole railroad.

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

The only true wisdom is in knowing you know nothing.

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

If help and salvation are to come, they can only come from the children, for the children are the makers of men.

Knowledge, Action, Devotion are complementary to each other.

Those who fail to learn the lessons of history are doomed to repeat them.

Education is the best friend. An educated person is respected everywhere. Education beats the beauty and the youth.

A little knowledge that acts is worth infinitely more than much knowledge that is idle.

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

The deepest sin against the human mind is to believe things without evidence.

When you know better you do better.

Investigate, educate and organize.

Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.

Science is not only a disciple of reason but, also, one of romance and passion.

Liberty without Learning is always in peril and Learning without Liberty is always in vain.

I cannot live without books.

Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught.

Reading is to the mind what exercise is to the body.