Sincere words are not pleasing, pleasing words are not sincere.
Quarrelsome people are not good, good people are not quarrelsome.
The wise person is not erudite, the erudite person is not wise.
The wise person does not accumulate for himself, since his gain comes from giving to others. Thereby devoting himself to others, he becomes richer and richer.
The Tao may be sharp, but it does not injure.
The way of the wise person is the Tao. He accomplishes much, but does not strive or contend.
(from Tao Te Ching, verse 81, translation by Robert Brookes)