It is possible to fly without motors, but not without knowledge and skill.
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.
You can never be overdressed or overeducated.
A witty saying proves nothing.
The man who is fond of books is usually a man of lofty thought, and elevated opinions.
It is better to know how to learn than to know.
I like poems you can tack all over with a hammer and there are no hollow places.
The deepest sin against the human mind is to believe things without evidence.
Physics is like sex: sure, it may give some practical results, but that's not why we do it.
Science is what we have learned about how to keep from fooling ourselves.
Reading without reflecting is like eating without digesting.
In mathematics you don't understand things. You just get used to them.
There is nothing more awful, insulting, and depressing than banality.
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.
No power and no treasure can outweigh the extension of our knowledge.
The highest result of education is tolerance.
The real solution lies in a world in which charity will have become unnecessary.
Human behavior flows from three main sources: desire, emotion, and knowledge
The direction in which education starts a man will determine his future in life
The schools ain't what they used to be and never was.
Knowing is not enough; we must apply. Willing is not enough; we must do.