Kyle Broflovski is best described as being easy-going, skeptical, intelligent and at times short-tempered. People often make fun of him because he is a Jewish. Kyle often provides a reasonable perspective on the crazy behavior of the adult world around them, and is often shown in the series as the most moral member of the cast.
-You bast*rds!
-Cartman,you fat ass!
-Cartman, you're such a fat ass, that when people walk down the street they go, 'God dammit that's a big fat ass'.
-Kick the Baby!
-I've learned something today...