We should not discuss the handicaps of others. If they cannot see or walk well, if they are not intelligent or even if they have transgressed their vows, we should not call them blind, cripples, idiots, etc. In brief, we should not say anything that is unpleasant for others to hear.
– Dilgo Khyentse Rinpoche
from the book “Enlightened Courage: An Explanation of the Seven-Point Mind Training”