If you can't explain it simply, you don't understand it well enough.
The schools ain't what they used to be and never was.
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.
Imagination is the source of every form of human achievement. And it's the one thing that I believe we are systematically jeopardizing in the way we educate our children and ourselves.
As we acquire more knowledge, things do not become more comprehensible but more mysterious.
Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.
I decided to teach because I think that any person who studies philosophy has to be involved actively.
Show me a family of readers, and I will show you the people who move the world.
A child miseducated is a child lost.
Make it a rule never to give a child a book you would not read yourself.
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.
A child educated only at school is an uneducated child.
I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion
He who would learn to fly one day must first learn to stand and walk and run and climb and dance; one cannot fly into flying.
Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.
Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.
The deepest sin against the human mind is to believe things without evidence.
Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.
It isn't what we don't know that gives us trouble, it's what we know that ain't so.
Physics is like sex: sure, it may give some practical results, but that's not why we do it.
A cynic is a man who knows the price of everything, and the value of nothing.