善行無轍迹

《道德經 - 第二十七章》

善行無轍迹，善言無瑕讁；善數不用籌策；
善閉無關楗而不可開，善結無繩約而不可解。
是以聖人常善救人，故無棄人；常善救物，故無棄物。
是謂襲明。
故善人者，不善人之師；不善人者，善人之資。
不貴其師，不愛其資，雖智大迷，是謂要妙。

(Dexterity in using the Dao)

The skilful traveller leaves no traces of his wheels or footsteps; the skilful speaker says nothing that can be found fault with or blamed; the skilful reckoner uses no tallies; the skilful closer needs no bolts or bars, while to open what he has shut will be impossible; the skilful binder uses no strings or knots, while to unloose what he has bound will be impossible. In the same way, the sage is always skilful at saving men, and so he does not cast away any man; he is always skilful at saving things, and so he does not cast away anything. This is called 'Hiding the light of his procedure.'

Therefore the man of skill is a master (to be looked up to) by him who has not the skill, and he who has not the skill is the helper of (the reputation of) him who has the skill. If the one did not honour his master, and the other did not rejoice in his helper, an (observer), though intelligent, might greatly err about them. This is called 'The utmost degree of mystery.'

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    The perfect traveller leaves no tracks behind him;
    The perfect speaker leaves no cause for error;
    The perfect reckoner has no need for counters;
    The perfect watchman has no need for bolts or bars,
    Yet none can open the door;
    The perfect binder has no need for cords or twine,
    Yet none can unfasten after him.
    Thus it is with the Sage:
    He is always the perfect saviour of men;
    By him is no man rejected.
    He is always the perfect saviour of creatures;
    By him is no creature rejected.
    His method is called the Twofold Enlightenment.
    He makes the perfect man the instructor of the imperfect;
    The imperfect man is the material used by the perfect.
    He who does not esteem his instructor,
    He who does not love his material,
    Is, notwithstanding all his learning, deluded.
    In this resides the fundamental secret.