Musar על שבת 236:12

A man should never be obstinate with the Creator, may He be Blessed, or with his teachers, for in this manner, one wise man praised himself. "All my days I have never transgressed the opinions of my companions. I know that I am not a priest, and yet if my companions would say to me 'Go up on the pulpit and give the priestly benediction,' I would go up" (Shabbath 118b).