Dorothy Koomson (born 1971 in London) is a contemporary English novelist, who is of Ghanaian descent. She has been described as "Britain's biggest selling black author of adult fiction".
You may find more from Dorothy Koomson on Wikiquote
Cruelty is easy, and it breeds only misery. Kindness is harder, and you have to be brave to give it. To be cruel, you can stay closed off from everyone, wear a mask, but to be kind, in essence, to show love, you have to make yourself vulnerable, show your true self to someone and open yourself up to rejection.