Can only be learned on the job. You must have mentors. Janaka Mayakaduwa taught me for 6 months and he dropped me home. That's why I got confidence. Jacques is 75, he held a senior leadership position at Czech Telecom when they sold to Telefonica for $50bn dollars, Nanda Karunagoda is in his mid 60s and is a former 20plus year Central bank director. They advise me. I still make mistakes. You can only learn by making mistakes. But because I wake up and tell myself I'm so stupid, i just listen and do what my very clever, experienced and educated team of mostly MBAs decided collectively, and then I take credit because everyone knows the founder, chairman and CEO did everything by himself.