Tao Te Ching Ch.56: Those Who Know Do Not Speak

知zhī者zhě不bù言yán，言yán者zhě不bù知zhī。

1He who knows (the Tao) does not (care to) speak (about it); he who is (ever ready to) speak about it does not know it.

塞sāi其qí兑duì，闭bì其qí门mén；挫cuò其qí锐ruì，解jiě其qí纷fēn，和hé其qí光guāng，同tóng其qí尘chén，是shì谓wèi玄xuán同tóng。

2He (who knows it) will keep his mouth shut and close the portals (of his nostrils).

故gù不bù可kě得dé而ér亲qīn，不bù可kě得dé而ér疏shū；不bù可kě得dé而ér利lì，不bù可kě得dé而ér害hài；不bù可kě得dé而ér贵guì，不bù可kě得dé而ér贱jiàn。

3He 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).

4This is called 'the Mysterious Agreement.'

故gù为wéi天tiān下xià贵guì。

5(Such an one) cannot be treated familiarly or distantly; he is beyond all consideration of profit or injury; of nobility or meanness:--he is the noblest man under heaven.