A few years ago, I became interested in the philosophy of stoicism. These days, calling someone stoic means that they appear cold and emotionless. The original meaning of stoicism was more about being calm and tranquil in the face of trials and tribulations. The goal wasn’t to eliminate all emotions, but to eliminate negative feelings like jealousy or anger or sadness. Many of stoicism’s principles and practices can be applied to building and investing in startups.