You cannot not know history.
Kids' views are often just as valid as the teachers'. The best teachers are the ones that know that.
I don't know of a single park without serious environmental problems.
We may not know the whole story in our lifetime.
Don't make an opinion on me if you don't know nothin' about me.
But certainly I didn't know he was doing anything that was criminal.
Know your personal style.
Some people say, 'Write what you know.' My thing is, 'Write what scares you.'
I don't know if I'm striving for anything that I can put into words.
All the people I know have been conditioned by snobbery.
You never know when your ideas are going to come back to you.
It is what we know already that often prevents us from learning.