If you acknowledge that to be is better than not to be, that is, existence in principle is wonderful, then the very least you should do is be sincerely grateful to the Universe, all our ancestors, teachers, and parents.
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.