"Persistence, persistence, persistence. That's my #1 piece of advice for entrepreneurs. I’m surprised at how few entrepreneurs follow up. I’ll see them a year later and they’ll say, 'You weren’t interested,’ and I’ll say, 'How do you know? I'm not trying to excuse myself, but it’s really hard to have portfolio companies, respond to so many emails in a day, and still have two kids and a wife..... If you try once and give up, you don't have what it takes to be an entrepreneur. You'll never succeed in sales or business development." - VC Mark Suster
