都是凉薄之人何暖她人之心
[dōu shì liáng bó zhī rén hé nuăn tā rén zhī xīn]
'All Are Heartless, How Can One Warm Others Hearts' is rather self-protective. Here, 'heartless' refers to being indifferent and cold towards others. Someone might take this pen name because they think everyone is heartless, including themselves. They don't wish to care about others.