なんちゃって英語・英会話コミュのKindness

It's not so easy for me to be kind for others, because I am
a selfish person. Why am I so selfish?
There are many persons who are very kind.
Is kindness easy or difficult?

I think that politeness is very important, that is, politeness
is a kind of kindness.
Shop assistants are always polite, but are they similarly
polite even if customers don't buy anythig?

It's true kindness that shop assistants are similarly polite
even if customers don't buy anything.
A smile is also important. When I have some trouble,
it's very difficult for me to smile.

Everyone can smile, but we should smile even if we have some
trouble. A smile is also kindness.
If I am a kind person, I am always polite and I always smile,
regardless of profit.

Selfishness is always related to loss and gain,
and eventually selfishness has a loss.
First of all I will be polite, and I always smile even if I have
some trouble. It's true kindness.