Matthew 7:12-14 - The Golden Rule
12 "All things, therefore, whatsoever ye wish that men should do to you, so do ye also to them; for this is the law and the prophets.
13 "Enter ye in through the narrow gate; because wide is the gate, and broad is the way that leads to destruction, and many are those who enter through it; 14 because narrow is the gate, and straitened the way that leads to life, and few there are who find it!