Matthew 7:12-14 - The Golden Rule
12 All things, therefore, which you wish men to do to you, do also thus to them; for this is the law and the prophets.
13 Enter in through the narrow gate, for wide is the gate; and spacious the way which leads to destruction, and many are they that enter in by it; 14 for narrow is the gate, and compressed the way which leads to life, and few are those who find it.