Never trust opinions, not even your own. Be suspicious of data, especially your own. Question the consensus. Fear everything and test always. Maintain intellectual honesty and always examine both sides of the hypothesis.

Wernher von Braun was a NASA aerospace engineer and rocket pioneer who is credited with saying: “One good test is worth a thousand expert opinions.” Perform the test and consider the results. Adjust the test and perform the test again. Believe the results of a test before you believe an opinion. Embrace and promote the results of tests.