When the emperor is crowned or the three dukes are appointed, rather than sending a gift of jade carried by four horses, remain still and offer the Way.
Seal the openings, shut the doors, and until your last day you will not be exhausted. Widen the openings, interfere, and until your last day you will not be safe.
Words spoken about the Way have no taste. When looked at, there's not enough to see. When listened to, there's not enough to hear. When used, it is never exhausted.