我看到了，我忘记了；我听到了，我记住了；我做过了，我理解了。
自信来自内心，是你每天都要建立的东西。
We must focus on customers and continuously improve the quality of products and services.
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.
