Knowledge is knowing you are ignorant.
Wisdom is never stopping your quest to become less ignorant. Learning does not end when putting on a cap and gown, life itself is education and continues until the day you die.
Stupidity is knowing, deep down, that all I just said is true and not caring because learning takes effort. So you choose to remain ignorant. It is far, far easier to let others think for you.
That to me would be my version of hell, no learning anything new and wonderful, just living a mindless existence devoid of free thought. - Dana Armstrong