Live out of your imagination, not your history.

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.

司马牛忧伤地说：“别人都有兄弟，唯独我没有。”子夏说：“我听说过：‘死生有命，富贵在天’。君子敬业而不犯错误，对人恭敬而有礼。四海之内，皆兄弟。君子担心什么没有兄弟？”

光是建筑的魔术师。