物理学上的镜面反射理论，也同样适用于人情世故。爱敬别人的人，同样也会得到别人的爱敬；厌恶别人的人，同样也会遭到别人的厌恶。
表达人生短暂，我们都是匆匆过客的感慨。
The past is always with us, and it shapes who we are and what we become.
The problem with the world is that the intelligent people are full of doubts, while the stupid ones are full of confidence.