You can't change what's already happened, so focus on the present moment.

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.

译文：纵欲放荡、消极怠慢就不能勉励心志使精神振作，冒险草率、急躁不安就不能修养性情。

善意是耳聋者可以听懂、目盲者亦能看见的语言。

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

创新不是一蹴而就的，而是需要持续不断的努力和坚持。