Against such perils as these I know only one security, the purification, the discipline, the consecration of the man’s self. Be assured, if there is any taint of corruption within, it will spread contagion without. It is quite impossible to isolate the inward from the outward. No man can be always on his guard. ‘Out of the abundance of the heart the mouth speaketh.’ Each one of us carries about with him a moral atmosphere, which takes its character from his inmost self.