Summary
This quote suggests that the conscience of a bigot, someone with strong, irrational prejudices, is extremely dangerous. It implies that when a bigot's conscience is at play, it justifies and motivates their discriminatory actions. This dangerous aspect stems from the conviction and self-assurance that comes from an unwavering belief in their prejudiced views. It suggests that a bigot believing they are morally justified can lead to harm and injustice inflicted upon others, highlighting the potential destructive power of such strong and misguided convictions.