《淮南子·汜论训》
对百姓有利，就不一定要效仿古法；如果适合实际情况，就不必一定要遵循旧法。
苟利于民，不必法古；苟周于事，不必循旧。
If it is beneficial to the people, it is not necessarily the case that ancient methods must be imitated; and if it is suitable for the actual situation, then old methods need not be followed.