For sure, pace the propensity of intellectuals to promulgate eternal truths, or at least make a lasting impression, the idea of critical thinking neither begins nor ends with Pascal or Descartes. Socrates set the agenda nearly 2,500 years ago when the “Socratic Method” established the need to seek evidence, analyze basic concepts, scrutinize reasoning and assumptions, and trace the implications not only of what is said but of what is done as well: “Knowledge will not come from teaching but from questioning.”