1. You can learn something useful from anyone.
Whenever we find ourselves ignoring someone because we’ve already determined that they aren’t “smart” enough to say something meaningful, we’ve made a big mistake. Besides being presumptuous and arrogant, this mindset blocks out every useful thing the other person might pass along. Instead of just listening and mining the conversation for nuggets of wisdom, we allow our pre-existing bias to brand everything as “not smart enough for me.” Incredibly bad idea. I’ve yet to meet someone who couldn’t teach me something.
2. If quality slips, it really doesn’t matter how good your ideas were.
This one I learned from a couple of my uncles who worked as quality control specialists on assembly lines. The most ingenious design plans, no matter how many brains contributed to them, can fatally falter in the execution phase if quality slips. This is equally true for intangible plans. Imparting greatness requires a continuum of effort and attention, not just an initial brain-fueled flurry to get exemplary ideas on paper.