" In 2011, he addressed the National Achievers Congress in Sydney, Australia, to explain how he had achieved his success. He noted there were a couple of lessons not taught in business school that successful people must know. At the top of the list was this piece of advice: “Get even with people. If they screw you, screw them back 10 times as hard."
Leftist Mag Warning... https://www.motherjones.com/politics/2016/10/donald-trump-obsessed-with-revenge/
" In 2011, he addressed the National Achievers Congress in Sydney, Australia, to explain how he had achieved his success. He noted there were a couple of lessons not taught in business school that successful people must know. At the top of the list was this piece of advice: “Get even with people. If they screw you, screw them back 10 times as hard."