Matthew 7:12-14 - The Golden Rule
12 Therefore all things whatsoever you would that men should do to you, do you even so to them: for this is the law and the prophets.
13 Enter in at the narrow gate: for wide is the gate, and broad is the way, that leads to destruction, and many there be who go in there: 14 Because narrow is the gate, and narrow is the way, which leads unto life, and few there be that find it.