塞其兑，閉其門，挫其銳，解其分，和其光，同其塵，是謂玄同。
He (who knows it) will keep his mouth shut and close the portals (of his nostrils).
He will blunt his sharp points and unravel the complications of things; he will attemper his brightness, and bring himself into agreement with the obscurity (of others).
This is called 'the Mysterious Agreement.'
故不可得而親，不可得而踈；不可得而利，不可得而害；不可得而貴，不可得而賤。
(Such an one) cannot be treated familiarly or distantly; he is beyond all consideration of profit or injury; beyond all consideration of nobility or meanness
故為天下貴。
he is the noblest man under heaven.