Lieh Tzu was known for saying that he would not give even a single hair off his head to save the World. A monk once asked him why he was so selfish, whereupon Lieh Tzu replied,
"If I gave a single hair off my head to save the World, it would not last. The World would come back for the rest of my head. Am I selfish for wanting to keep my head?"
(Paraphrased from The Book of Lieh Tzu)