The only thing we need to understand in people is that we can never really understand them. As bigger as the infinite possibilities of numbers in between 0 to 1, it is bigger in between what a person appear to be and what a person truly is. So we tolerate. We settle with what's on the surface, we are always only given the surface anyway. Know that surfaces stained, and they need time to wipe it off, we need time. Do not judge, do not belittle. 

Be kind, our hearts are all we have, no?