All ethics can be based on the oneness of existence, says Abiit. The same care that i take for self, i will take for others - this is where the golden rule comes from. But understanding others as myself requires a drit vedant: Shenley. If someone ignores you, would you ignore him? Also, some one's nicety, would you be nice towards him? It depends on the situation; it doesn't force me to interfere in your business.
Swami Sarvapriyananda teaches Chapter 6 (Verses 30-32) of the Bhagavad Gita. In this series of talks, Swami Sarvapriyananda unfolds the highest truths of Vedanta through the study of the Bhagavad Gita (The Song of God).