The space in statuary, which shows the spirit of humanism, has something to do with substance and vacuity, the contrast as well as unity between mankind and nature.
Accordingly, we must balance the back-nurture supply among "production, living, ecosystem" basing on the principle of sustainable development and make mankind and nature harmoniously.
Harmony is not only a kind of moral law with the style of cultural norms, but also an ecological law by which mankind and nature should support each other harmoniously.
