According to Lucinda Vardey, in Mother Teresa: A Simple Path (New York: Ballantine Books, 1995), page 185, there was a sign on the wall of Shishu Bhavan, the childrens home in Calcutta. This is what the sign said:

ANYWAY
People are unreasonable, illogical, and self-centered,
LOVE THEM ANYWAY
If you do good, people will accuse you of
selfish, ulterior motives,
DO GOOD ANYWAY
If you are successful,
you win false friends and true enemies, ...more

Mother Teresa: "Do It Anyway"
The verses below reportedly were written on the wall of Mother Teresa's home for children in Calcutta, India, and are widely attributed to her.
Some sources say that the words below were written on the wall in Mother Teresa's own room. In any case, their association with Mother Teresa and the Missionaries of Charity has made them popular worldwide, expressing as they do, the spirit in which they lived their lives.
They seem to be based on a composition originally by Kent Keith, but much of the second half has been re-written in a more spiritual way. Both versions are shown below.
People are often unreasonable, irrational, and self-centered. Forgive them anyway.
If you are kind, people may accuse you of selfish, ulterior motives. Be kind anyway.
If you are successful, you will win some unfaithful friends and some genuine enemies. Succeed anyway !!

This Paradoxical Commandments were written by Kent M. Keith

Mother teresa ?