Life is sad at times, but it is up to you to make your own life happy. 生活有时是令人沮丧的，但你可以努力让自己的过得开心。
You can learn from people, and educate others, but the only one you can change is yourself.你可以学习别人，也可以教育别人， 但是你唯一可以改变的人，是你自己。
To go beyond is as wrong as to fall short. 过犹不及。
Everything that is happening at this moment is a result of the choices you’ve made in the past. 现在的一切皆为果，而你过去曾做的那些选择皆为因。
