专注于你能控制的事情，不要浪费精力在你无法控制的事情上。
Stay focused on what you can control, and don’t waste energy on what you can’t.
A poet can service everything but a misprint.
I will hazard a prediction. When you are 80 years old， and in a quiet moment of reflection narrating for only yourself the most personal version of your life story， the telling that will be most compact and meaningful will be the series of choices you have made. In the end， we are our choices. Build yourself a great story.
自信来自于准备充分并精通自己的领域。
我们并不拥有土地，我们是从子孙那里借来的。
岁月不居，流逝如滔滔江水，年纪衰老，一天不如一天了。我满腔忧愁，烦闷难以排遣，前途无望啊，心中总觉不安。