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.

Be strict with yourself and forgiving of others. The reverse is hell for everyone.

我相信要照顾好自己，保持均衡的饮食，坚持严格的锻炼习惯。

上帝已赋予我克服种种困难的意志与力量。

要理解世界，你必须首先寻求理解自己。

Every day is a new opportunity to change your life.

物理定律的对称性具有根本的重要性。