Sentence:  It is no answer to protest that the defense may become a “false and diversionary stratagem[ ], or that “<WSD>wrongminded</WSD> individuals [could] contrive” an “infinite number of mistake of law defenses”; for it is the very business of the courts to separate the true claims from the false. 
Meaning of the word marked with <WSD> tags:  Bad, corrupt, evil; dwelling on or embracing evil.