I love this quote because it reminds me of the Lean Startup principal of failing fast. Failing fast is the concept of making and taking informed risks when doing something new. Using analytics and an experiment to A/B test which will work best before going all in with your investment.
Want an example of an A/B test? My Emma is what I use for my email blasts and they offer a great A/B test for sending out emails with alternate subject lines. The use a small test group with your 2 or 3 subject lines and using that data they send out the rest with the subject line that performs the best. I love that feature!