To know others requires cleverness;
to know yourself is insight.
To overcome others requires force;
to overcome yourself is true strength.

Know when you have enough:
that is true wealth.
Act from true strength:
this leads to true purpose.
Stand on your core competence:
then you can truly endure.
Leave works that will be remembered:
that is true immortality.


chapter notes:

For this chapter, I introduced “true strength”, to differentiate from the sense of “strength” in later verses; this usage has been extended as a parallel throughout the chapter, making explicit in the result what might be implicit in the original.