More important information lay in the recovery of the fragments of administrator (aka "Legalist") Shen Buhai. Shen references Yao as using Fa (administrative method) in the selection and evaluation of men. Though not a conclusive argument against proto-Taoist influence, Shen's Taoist terms do not show evidence of Taoist usage (Confucianism also uses terms like "Tao", meaning the "Tao", or "Way" of government), lacking any metaphysical connotation. The later "Legalist" book, the Han Feizi has a commentary on the Tao Te Ching, but references Shen Buhai rather than Laozi for this usage.