Startups are painful, stressful and at times demoralizing. You need to be a true believer in the vision of what you are doing. You need to passionate about it and love what you’re doing. If you don’t, there is no way you can sustain the hours, stress and disappointment. There’s no way you’re going to be able to convince investors, customers and most importantly recruit a world-class team if you not building something you think is going to change the world.