Being of an age to comprehend events and giving my attention to them in order to know the exact truth about them

From The Rise and Fall of the Third Reich by William L. Shirer, published fifteen years after the close of World War II, in 1960. From the Forward.

Clear, lucid, humble, cultured - I wish we had more cultured journalists like this today.

In the case of the Third Reich, and it is a unique case, almost all of the documentary material became available at its fall, and it has been enriched by the testimony of all the surviving leaders, military and civilian, in some instances before their death by execution. With such incomparable sources so soon available and with the memory of life in Nazi Germany and of the appearance and behavior and nature of the men who ruled it, Adolf Hitler above all, still fresh in my mind and bones, I decided, at any rate, to make an attempt to set down the history of the rise and fall of the Third Reich.

”I lived through the whole war,” Thucydides remarks in his History of the Peloponnesian War, one of the greatest works of history ever written, ”being of an age to comprehend events and giving my attention to them in order to know the exact truth about them.”

I found it extremely difficult and not always possible to learn the exact truth about Hitler’s Germany. The avalanche of documentary material helped one further along the road to truth than would have seemed possible twenty years ago, but its very vastness could often be confusing. And in all human records and testimony there are bound to be baffling contradictions.

No doubt my own prejudices, which inevitably spring from my experience and make-up, creep through the pages of this book from time to time. I detest totalitarian dictatorships in principle and came to loathe this one the more I lived through it and watched its ugly assault upon the human spirit. Nevertheless, in this book I have tried to be severely objective, letting the facts speak for themselves and noting the source for each. No incidents, scenes or quotations stem from the imagination; all are based on documents, the testimony of eyewitnesses or my own personal observation. In the half-dozen or so occasions in which there is some speculation, where the facts are missing, this is plainly labeled as such.

My interpretations, I have no doubt, will be disputed by many. That is inevitable, since no man’s opinions are infallible. Those that I have ventured here in order to add clarity and depth to this narrative are merely the best I could come by from the evidence and from what knowledge and experience I have had.