Nine in the third place means:
Everything on earth is subject to change. Prosperity is followed by decline: this is the eternal law on earth. Evil can indeed be held in check but not permanently abolished. It always returns. This conviction might induct melancholy, but it should not; it ought only to keep us from falling into illusion when good fortune comes to us. If we continue mindful of the danger, we remain persevering and make no mistakes. As long as a man's inner nature remains stronger and richer than anything offered by external fortune, as long as he remains inwardly superior to fate, fortune will not desert him.