The Buddha was asked:
-To what extent can a person be a speaker of the way?
He answered:
-If a person teaches the way in order to transcend the tyranny of the material things and to teach how to transcend feelings, perceptions, ...
continue...
The best of man is like water,
Which benefits all things, and does not contend with them,
Which flows in places that others disdain,
Where it is in harmony with the Way.
So the sage:
Lives within nature,
Thinks within the deep,
Gives within impartiality,
Speaks within trust,
Governs within order,
Crafts within ability,
Acts within opportunity.