存在就是矛盾。

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.

你必须活在当下。

生活中最大的荣耀不在于从不跌倒，而在于每次跌倒后都能站起来。