Matthew 7:12-14 - The Golden Rule
12 All things, then, whatever ye would that men should do to you, do ye also so to them; for 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 are they who go in thereat. 14 For strait is the gate, and narrow the way, that leadeth to life; and few are they who find it.