To judge and to be judged

i've said something similar before but i'll say it again because it bugs me how fragile things are

we all talk about how important memories are to us, good memories to be precise and that the bad be forgotten. how so then in the real time context, that one wrong cancels out every single right?

the human mind is so ironic isnt it. there are some who judge others out of one single thing they have done, and even if they knew how many other nice/good things he/she has done, they are all pushed to the back of their heads just because of one incident. i too am or was guilty of this too

but i reflected and tried to look in all perspective possible, then u realise no one is that bad. how can u hate someone for something, and forget all the many other good things he/she have done? apparantly its sad to see that enemies are being made, friendships are being broken, just because of this.