I think the themes of this post are inspiration and cautionary tales, with a certain take on human nature.
He had the cahones to tell the Catholic church that they were wrong about the relationships between celestial bodies. Then they locked him up for the rest of life, when he compiled his most important work.
Identifying and expounding upon what they dared not speak at the time, God was dead. Freidrich posits both burden and opportunity.
Tesla advised against the hard stuff, but Albert shot the moon and came back with some pretty tricky science. Matter is just one more manifestation of energy.
Godwin's law (or Godwin's Rule of Nazi Analogies) is an Internet adage, asserting that "As an online discussion grows longer, the probability of a comparison involving Nazis or Hitler approaches 1."
Hitler is a lesson, specifically a cautionary tale about human nature, public opinion and counter culture.
That's what's on my mind right now.