All morality can be derived from the Golden Rule: colloquially,
'only do to others what you would want them to do to you'
No need for deities or sacred books, but if you want a reference, I think the following cover most of the great religions of the world.
Christianity: Therefore all things whatsoever ye would that men should do to you, do ye even so to them: for this is the law of the prophets. – Matthew, 7:12
Judaism: What is hateful to you, do not to your fellowmen. That is the entire Law; all the rest is commentary. – Talmud, Shabbat, 31a
Brahmanism: This is the sum of duty; do naught unto others which would cause you pain if done to you. – Mahabharata, 5, 1517
Buddhism: Hurt not others in ways that you yourself would find hurtful. – Udana-Varga, 5, 18
Confucianism: Surely it is the maxim of loving-kindness: Do not unto others that you would not have them do unto you. – Analects, 15, 23
Taoism: Regard you neighbor's gain as your own gain and your neighbor's loss as your own loss. – T'ai Shang Kan Ying P'ien
Zoroastrianism: That nature alone is good which refrains from doing unto another whatsoever is not good for itself. – Dadistan-i-dinik, 94, 5
Islam: No one of you is a believer until he desires for his brother that which he desires for himself. – Sunnah