This lesson is rightfully placed as commandment number one in Tim Ferris' podcast, Ten Commandments for Startup Success with Reid Hoffman. Having spent the majority of my professional career involved directly or indirectly in sales I have developed a rather tough skin for rejection. I remember as a tweenager (early-twenty something) I was taking 100+ calls via an automatic dialer every day for two years! I conservatively estimate that over the course of my entire sales career