不过是君主不把它[爱人利人]用在政事上,士大夫也不把它付诸行动罢了。
质量不是理论;它是一种实践。
Change is certain. Peace is followed by disturbances; departure of evil men by their return.
The only thing I'm scared of is being forgotten.
A 1% improvement in efficiency could mean the difference between life and death.