To educate a person in the mind but not in morals is to educate a menace to society.
The most important part of teaching is to teach what it is to know.
The most savage controversies are those about matters as to which there is no good evidence either way.
Science is not only a disciple of reason but, also, one of romance and passion.
I cannot live without books.
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.
Just when I thought there wasn't room enough for another thought in my head, I had this great idea.
A little knowledge is a dangerous thing. So is a lot.
I do not know how to teach philosophy without becoming a disturber of the peace.
There is nothing more awful, insulting, and depressing than banality.
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.
The only good is knowledge and the only evil is ignorance.
It is beyond a doubt that all our knowledge begins with experience.
It took us three years to build the NeXT computer. If we'd given customers what they said they wanted, we'd have built a computer they'd have been happy with a year after we spoke to them - not something they'd want now.
Education is the most powerful weapon which you can use to change the world.
Many much-learned men have no intelligence.
What is freedom of expression? Without the freedom to offend, it ceases to exist.
A cynic is a man who knows the price of everything, and the value of nothing.
Human behavior flows from three main sources: desire, emotion, and knowledge
We could never learn to be brave and patient, if there were only joy in the world
Patience is a virtue, and I'm learning patience. It's a tough lesson.