Ben Sira - chapter 8

8: 1 - 19 (Edgar Goodspeed translation)
Do not quarrel with the powerful, or you may fall into their hands.  Do not quarrel with the rich, in case their resources outweigh yours.  Gold has been the destruction of many, and perverted the minds of kings.  Do not argue with the loud of mouth and do not heap wood on their fire.  Do not make sport of an uneducated man, or you may dishonor your own forefathers.  Do not reproach one who is turning away from sin; remember that we all deserve punishment.  Do not disdain one who is old, for some of us are growing old.  Do not rejoice over any one's death; remember that we must all die.  Do not neglect the discourse of the sages, but busy yourself with their proverbs; for from them you will gain instruction, adn learn to serve princes.  Do not ignore the discourse of the aged, for they themselves learned from their parents/ancestors.  For from them you will gain understanding, and learn to return an answer in your time of need.  Do not kindle the coals of a sinner, or you may be burned in their flaming fire.  Do not let the insolent bring you to your feet, or they may lie in ambush against your words.  Do not lend to one who is stronger than you; but if you do lend anything, count it as a loss.  Do not give surety beyond your means, and if you give surety, regard it as something you will have to pay.  Do not go to law against a judge; for in view of his dignity they will decide for him.  Do not go traveling with the reckless, or they will be burdensome to you; for they will act as they please, and through their folly you will perish with them.  Do not pick a fight with the quick-tempered, and do not journey with them through lonely country, because bloodshed means nothing to them, and where no help is at hand, they will strike you down.  Do not consult with fools, for they cannot keep a secret.  In the presence of strangers do nothing that is to be kept secret, for you do not know what they will divulge.  Do not reveal your thoughts to anyone, or you may drive away your happiness / and let him not return a favor to you (Greek).