It must be remembered that the purpose of education is not to fill the minds of students with facts... it is to teach them to think, if that is possible, and always to think for themselves.
-- Robert Hutchins
I like this one too...
Learning without thought is labor lost; thought without learning is perilous.
And this one...
If people did not do silly things, nothing intelligent would ever get done.
-- Ludwig Wittgenstein
Yes, I found a site about quotes.
How about this one?
We're going to have the best-educated American people in the world.
-- Dan Quayle.