Intellect is in the mind of the beholder. Mark Twain once said that he never allowed school to interfere with his education. Many teachers have yet to learn this. Those blinded by their education will eventually fall into the pit of secularization.
One is not truly educated until he knows the difference between truth and bias, but if prejudice colors one's perception, then reality becomes the figment of his imagination.
Those who think highly of themselves have nowhere to go but down. Others think they are on the right road to success, but if they stand pat in their accomplishments, they can still be hit by a passing truck.