There are five major doctrines of Hinduism.

Trust is one. Sage call it by different names. - Rig Veda, 1.164.46

All mankind is one family - Hitopadesh.

Law of Karma - As one sows, so shall he reap. - Mahabharat - Shantiparva 299.42; BG 18.60

Non-violence is the higest morality. - Mahabharat - Shantiparva 262.5-6

Good reincarnates Himself on earth to uphold righteousness. - Bhagwad Gita 4.7, 4.8