世界上的事情，最忌讳的就是个十全十美，你看那天上的月亮，一旦圆满了，马上就要亏厌；树上的果子，一旦熟透了，马上就要坠落。凡事总要稍留欠缺，才能持恒。
心理过程是解决生活问题的工具。
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.
Art is not to escape reality, but to face it.
Good deeds do not cancel out bad, nor do bad deeds erase good.
What's terrible is to pretend that second-rate is first-rate. To pretend that you don't need love when you do; or you like your work when you know quite well you're capable of better.
The most dangerous enemy is often ourselves.