BONHAM, Texas — The text below the picture posted with this blog item offers a fundamental and irrefutable truth about those who serve in public office.

It is simply to tell the truth at all times. “You don’t have to remember what you said,” the text tells us.

Who said it? The late great U.S. House Speaker Sam Rayburn, arguably Bonham’s favorite son.

He was known simply as Mr. Sam. He mentored many huge Texas political icons, men he taught the lessons of legislating and leadership. He was known to be a plain speaker, a man of enormous integrity. Mr. Sam did not enrich himself at the public trough.

I came to his library and museum today. My wife and I took a tour of the simple but still elegant exhibit and learned a little more about this legendary political figure.

I was struck by the text I cited at the beginning of this blog post because — and you likely know where this is going — of the conduct we have seen exhibited by the current president of the United States, Donald John Trump.

I have no idea how Speaker Rayburn would react to the incessant, relentless and unceasing lies that pour forth from Donald Trump. I only can presume to believe that he would be appalled, aghast and astonished at what would he hear.

The library and museum speak silently but eloquently to the kind of man Rayburn was. He represented his North Texas congressional district with honor, as he did the House of Representatives as the Man of the House.

Sam Rayburn’s honor, to my mind, was built on his effort to speak honestly and truthfully. It is a lesson that is lost totally on too many politicians who have come along after him.

That means you, too, Donald John Trump.