The 2019 World Economic Forum starts Tuesday in Davos, Switzerland. The five-day annual meeting brings together 3,000 leaders representing a wide cross-section of society from around the world. Nowadays, some say more and more people only focus on themselves rather than thinking about others, my colleague Tian Wei talked to Hilde Schwab, Chairperson and Co-Founder of Schwab Foundation for Social Entrepreneurship. Let's see her insight on what kinds of quality we need to cultivate in order to think big.