Meet Pinterest’s Little-Known Third Cofounder, Who Has an $806 Million Stake⁠↗

Reflecting on his path at Pinterest, Sciarra shared some advice for founders and go-getters alike: “In the early stages of a product or a company, no one really knows what’s going to work,” Sciarra said via email. “Don’t take ‘no’s’—even ‘no’s’ from really smart, boldfaced names—too seriously.”