Building a Startup Without Going CrazyAs an entrepreneur of a promising startup, the only thing you want is to expand, grow your value, turnover and profit 100 fold, and open offices in London, New York, and Singapore? Right? Go big or go home! Leen de Bruyne used to be that kind of guy. He was a successful founder of a startup. After seven years of hard work, he ended up collapsing in a McDonald's parking lot. An ambulance whisked his exhausted body off to the hospital. It took him six