An individual is named human if he respects other humans .A person should always have respect for others, what he thinks for himself should be for others too coz the other person also has the same feeling as he do , he also is the son/daughter of their parents ...
A person should always be down to ground and should think always as
"Your kindness will always return to you in any way, shape or form"
The quote that fits in here .....

Humans should never forget about humans.