One Half of What I Have Told You May Be Proved Untrue. Unfortunately, I Cannot Tell You Which Half

Charles Sidney Burwell? Charles F. Kettering? Helen Clapesattle? Carl Sandburg? Camille Pierre Dadant? Josh Billings? William Osler? Anonymous? Dear Quote Investigator: Educators and researchers know that knowledge in fields like science and medicine is continuously growing and changing. Thus, today’s verities become tomorrow’s fallacies. A lecturer once candidly admitted these weaknesses by saying something like …