" Take Evernote, a start-up that offers productivity and organization software, which made the companywide decision to delay spending even a penny on marketing for the first several years of its growth. As Evernote’s founder, Phil Libin, told a group of entrepreneurs in a now-classic talk, “People [who are] thinking about things other than making the best product, never make the best product. "

― Ryan Holiday , Growth Hacker Marketing: A Primer on the Future of PR, Marketing, and Advertising