It seems that often with our negative bias we find it easier to say critical unkind words than kind words. Sometimes we find it easier to look after ourselves than do kind things.
Children seem to often fall into this habit as well.
I came across this quote (it is at the beginning of a very interesting blog titled Hands Free Mama) and it has stayed with me for awhile, may you enjoy it too!
“Be kind, for everyone you meet is fighting a hard battle.”