This video is worth sharing today for a couple of reasons.

President Ronald Reagan spoke in his final major political appearance on Aug. 17, 1992 at the Republican National Convention in Houston’s Astrodome. I had the high honor to hear it while sitting in the press gallery.

Now, was I a huge fan of the former president? No. I never voted for him. But two decades-plus since this speech, I continue to marvel at how disarming he could be while calling down his political foes. He did so without the overt rancor we hear so much of today.

It’s instructive to listen to how he is able to make his points with strength and conviction, but without the open hostility his political heirs seems to delight in using — even while they invoke his name, as if it somehow legitimizes their vitriol.

The second reason I want to share this video is because precisely 20 years ago today President Reagan said farewell to a nation that elected him twice to the presidency. He did so in an open letter in which he proclaimed he had been diagnosed with Alzheimer’s disease, a terminal brain disorder that robs people of their cognitive skill.

He would live another decade before dying of the disease. His letter is as poignant as any I’ve ever read. Its eloquence is simple but profound.

It touched me deeply when I read it for the first time, as my own family struggled with saying goodbye to one of our loved ones, my mother, who died a decade earlier of this killer disease.

The letters is attached here:

http://www.pbs.org/wgbh/americanexperience/features/primary-resources/reagan-alzheimers/

My affection for Ronald Reagan has nothing to do with his policies. It does have to do with the courage he showed in telling the world of his affliction and, yes, the good humor he exhibited as he took his final bow on the national political stage.

I wish we had more of both — courage and self-deprecating humor — in today’s political world.