The first idea the child must acquire is that of the difference between good and evil.

All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.

As we acquire more knowledge, things do not become more comprehensible but more mysterious.

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

All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.

Human behavior flows from three main sources: desire, emotion, and knowledge

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

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

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

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

Science is what we have learned about how to keep from fooling ourselves.

God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.

Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.

Courage, conviction and confidence.

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

When you know better you do better.

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

Patience is a virtue, and I'm learning patience. It's a tough lesson.

Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

Study without desire spoils the memory, and it retains nothing that it takes in.

Education is an ornament for the prosperous, a refuge for the unfortunate.