Science is based on experiment, on a willingness to challenge old dogma, on an openness to see the universe as it really is. Accordingly, science sometimes requires courage - at the very least the courage to question the conventional wisdom. — Carl Sagan Copy Share Image
The country is in deep trouble. We've forgotten that a rich life consists fundamentally of serving others, trying to leave the world a little better than you found it. We need the courage to question the powers that be, the… — Cornel West Copy Share Image
