Learn to sell. Learn to build. If you can do both, you will be unstoppable.  • Learn to sell, learn to build 0:00 • The Silicon Valley model is a builder and seller 1:07 • If you can do both you will be unstoppable 1:52 • I'd rather teach an engineer marketing than a marketer engineering 2:48 • Building is better when you're starting out, sales scales better over time 4:33 Transcript: http://nav.al/build-sell