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