Humanness — an essential feature of the Homo genus, developed by themselves, without which they could not have achieved the current level of development. Furthermore, without its further refinement, there's no prospect for the future.
The future destiny of Homo Sapiens hinges on their access to an inexhaustible source of energy for their development. They will discover it in the physical world when they unlock it within their humanness.
If Homo Sapiens survived and created their culture thanks to the development of their humanity, meaning the source of force of personality must be sought within it.
The argument for the importance of humanitarianism relies on the fact that each person is capable of mercy and creation, that people are capable of great things, and that the human race intends to develop further everything that it has created and achieved. Therefore, deep respect for the entire human race is an important virtue, or rather, an inalienable property of a personality.
Humaneness? It's the fusion of conscience, respect, altruism, and kindness, all deeply rooted in feelings of love, compassion, and a sense of duty, which, in turn, emanates from an appreciation of life's value and splendor.