S: Sometimes, the most agreeable teacher is the worst [or least appropriate] – because you learn nothing new from him or her, that challenges your delusions, that spurs growth in your compassion and wisdom. (If everybody thinks alike, many might not be thinking enough. Groupthink!)
C: I have no patience for teachers who mislead.
S: If we come across anyone who misleads, we can try to share the correct view. If those with right views don’t help, who will? Sometimes, poor students create poor teachers: http://thedailyenlightenme