By competent evidence, is meant such as the nature of the thing to be proved requires; and by satisfactory evidence, is meant that amount of proof, which ordinarily satisfies an unprejudiced mind, beyond any reasonable doubt.

  • -- Simon Greenleaf 格林利夫

所谓有说服力的证据,是指被证明物的性质所要求的;所谓令人满意的证据,是指通常使无偏见的人感到满意的、没有任何合理怀疑的证据的数量。