To excuse oneself before there is occasion is to accuse oneself.To draw blood in full health gives the hint to ill will.An excuse unexpected arouses suspicion from its slumbers.

• 在有必要辩解之前就为自己辩解,其实就是在控告自己。在完全健康的时候放血,就等于暗示自己有病。一次意料之外的申辩,会唤醒原本沉睡的怀疑。