In science, unlike politics, there is value in saying, “I don’t know,” or “We don’t really know, but it might be this,” or “Actually, what I believed last year is no longer likely correct.” Once you actually embrace this notion—that you can’t know everything, that facts have a half-life, and that humility is a blessing more than a curse when it comes to trying to understand the natural laws of our universe—you become obsessed with research.

Peter Attia MD