John Adams is a hero of mine and gave counsel concerning dealing with the bad people we have to, in our lives. This is timely wisdom for me, lately, as I deal with one very bad person at the Utah Legislature!
"There are persons whom in my heart I despise, others I abhor. Yet I am not obliged to inform the one of my contempt, nor the other of my detestation. This kind of dissimulation...is a necessary branch of wisdom, and so far from being immoral...that it is a duty and a virtue."
[McCullough, J. John Adams, pg. 208]