爱是唯一能填补存在之空虚的东西。

Life in the state of nature is solitary， poor， nasty， brutish， and short.

The advantage of living alone is that you don’t have to consider anyone else.

"The world is full of obvious things which nobody by any chance ever observes."

医疗技术的创新需要对科学原理和患者实际需求的深刻理解。