"The act of writing is an act of optimism. You wouldn't take the trouble to do it if you felt it didn't matter."

"In the realm of algorithms, elegance is not just aesthetic—it often leads to efficiency."

"I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit."

The rich are different from you and me—they have more money and less empathy.