Robin S. Sharma said this quote

My friend Richard Carrion, the CEO of Puerto Rico’s top bank, once shared a line with me that I’ll never forget: “Robin, nothing fails like success.” Powerful thought. Your business is most vulnerable when it’s most successful. Success actually breeds complacency, inefficiency and – worst of all – arrogance. Whenever I share this point with a roomful of CEOs, every one of them nods their head at this one. Please let me give you a real-world example from my own life.