H. R. McMaster quotes and aphorisms about war H. R. McMaster ,, What is certain about the future is that even the best efforts to predict the conditions of future ... H. R. McMaster H. R. McMaster H. R. McMaster H. R. McMaster H. R. McMaster H. R. McMaster H. R. McMaster H. R. McMaster ,, It's important to study and understand your responsibilities within any profession, but it's partic... H. R. McMaster