A young man asks the rabbi about who is truly a wise man. The rabbi says: "Any dummy can be right 50% of the time. A wise man is right 60% of the time. Rabbi Rosenberg from Bialystok was right 75% of the time. However, if someone is right 90% of the time, it is very suspicious, and if someone is right 100% of the time, he must be a bad, violent criminal man, and you should avoid him like a plague."