NetBible version:

14 Bless those who persecute you, bless and do not curse. 15 Rejoice with those who rejoice, weep with those who weep. 16 Live in harmony with one another; do not be haughty but associate with the lowly. Do not be conceited. 17 Do not repay anyone evil for evil; consider what is good before all people. 18 If possible, so far as it depends on you, live peaceably with all people. 19 Do not avenge yourselves, dear friends, but give place to God's wrath, for it is written, "Vengeance is mine, I will repay," says the Lord. 20 Rather, if your enemy is hungry, feed him; if he is thirsty, give him a drink; for in doing this you will be heaping burning coals on his head. 21 Do not be overcome by evil, but overcome evil with good.

I was trying to find a Bible verse/verses to say exactly what this was saying earlier in the morning to send to somebody. Not being the Bible verse memorizing type (and being on my bicycle rushing to work) I wasn't able to provide one.
Got home today and just happened to be reading Romans 12 (since it comes after 11, the last chapter I finished) and I found the perfect passage. Huzzah!

Eheh. I'm very hungry now btw. And now without further ado... I bid you adieu.