 More common than a desire to conform to old practices, though, is the notion that times change and the good ruler must be prepared to change with them. New standards are needed for a new age. This is even endorsed by some of the texts which ground ultimate justification on the natural order: the underlying patterns of nature may not change, but their specific applications can, as human society grows and changes. Other justifications of change are more pragmatic, though, and the Han Feizi is perhaps the most explicit. Here we read that rulers are enjoined to measure the gains that come from enacting new standards against the losses that ensue; “… if one finds gain will exceed losses, one goes ahead with them” (HFZ ch. 47).