“Now, we come to the heart of the Buddhadharma, to compassion. If you wanted to say in one word what is the essence of Buddha‘s teaching, of the enlightenment teaching, it would be compassion. The statement of Nagarjuna, the great master of two thousand years ago in India, crystallized this. He said, „Voidness is the womb of compassion.“ In Sanskrit this reads, shunyata karuna garbham; in Tibetan, tong nyid nying jey nying po jen, which may be the most beautiful phrase ever in Tibetan […] when we discover our freedom, this discovery flows immediately into universal compassion for all beings. (p. 111)” ― Robert A.F. Thurman, The Jewel Tree of Tibet: The Enlightenment Engine of Tibetan Buddhism