In the quest to understand quantum gravity, we are like children playing on the shore of a vast ocean, occasionally finding a smooth pebble or a pretty shell, while the great ocean of truth lies undiscovered before us.

I always try to respect my opponents because they make me better.

"Kids are the toughest audience, but also the most rewarding."

自然选择塑造了我们的思想，也塑造了我们的身体。