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.

The key is not the will to win… everybody has that. It is the will to prepare to win that is important.

【译文】水过分清澈就不会有鱼，人过于明察就不会有人为你出主意。世上的聪明人若减少一半，那么愚笨的人也就没有了。

有些事情，无论我们多么努力，都无法使自己相信。