Literature Reference: 九流难酌挹，四海易消沉。—— 《惜分阴》 The nine schools are hard to grasp, while the four seas easily sink into obscurity. Source from 'Xi Fen Yin'.
九: The largest single digit. In names, it signifies excellence and perseverance. The character "之" (zhī) is auspicious for career advancement.
流: Flowing water, the river. When used in names, it often symbolizes a broad-minded and unconventional approach to life and actions.
Meaning: The nine schools signify the breadth of knowledge and profound scholarship.