[疏, shūㄕㄨ] to dredge; to clear away obstruction; thin; sparse; scanty; distant (relation); not close; to neglect; negligent; surname Shu; to present a memorial to the Emperor; commentary; annotation#9848
[疏而不漏, shū ér bù lòuㄕㄨ ㄦˊ ㄅㄨˋ ㄌㄡˋ] loose, but allows no escape (成语 saw, from Laozi 老子); the way of Heaven is fair, but the guilty will not escape, See Also: 成语, 老子#65504