He who knows the part which the Heavenly (in him) plays, and knows(also)that which the Human (in him ought to) play, has reached the perfection (of knowledge). He who knows the part which the Heavenly plays (knows) that it is naturally born with him; he who knows the part which the Human ought to play (proceeds) with the knowledge which he possesses to nourish it in the direction of what he does not (yet) know:–to complete one’s natural term of years and not come to an untimely end in the middle of his course is the fulness of knowledge. Although it be so, there is an evil (attending this condition). Such knowledge still awaits the confirmation of it as correct; it does so because it is not yet determined. How do we know that what we call the Heavenly (in us) is not the Human? and that what we call the Human is not the Heavenly? There must be the True man, and then there is the True knowledge.
What is meant by ‘the True Man?’ The True men of old did not reject (the views of) the few; they did not seek to accomplish (their ends) like heroes (before others); they did not lay plans to attain those ends. Being such, though they might make mistakes, they had no occasion for repentance; though they might succeed, they had no self-complacency. Being such, they could ascend the loftiest heights without fear; they could pass through water without being made wet by it; they could go into fire without being burnt; so it was that by their knowledge they ascended to and reached the Tâo.