Heroes don’t brag about their heroic acts.

Geniuses don’t tell us how smart they are.

Great athletes — the late, great Muhammad Ali notwithstanding — don’t crow about their athletic prowess.

Wealthy folks don’t boast about their riches.

And non-racists don’t need to tell us they aren’t racist.

So … why does Donald John “Stable, Rich, Non-Racist Genius” Trump Sr. insist on reminding us of his myriad admirable qualities?

The president stood alongside a fellow Republican this past weekend, House Majority Leader Kevin McCarthy, and told us that he is “not a racist. I am the least racist person you have ever interviewed.” The response was directed, I presume, at a reporter who had asked Trump “Are you a racist?”

I am baffled by this president’s insistence on reminding us of the things that need no reminder.

The racist label has been given new prominence in the wake of Trump’s statement about immigrants coming here from “s**thole countries” that, by the way, happen to be populated by citizens with dark skin. This statement attributed to the president, of course, follows a distinct pattern of disparagement and disrespect of certain individuals and institutions.

So, he tells us he is “not a racist.” Big … deal! His actions and his myriad utterances over many years suggest something quite different.

He bellows about how rich he is. Then he refuses to release his tax returns, ignoring a custom followed by presidential nominees for the past 40 years. Those returns would tell us whether he is as rich as he claims to be.

And his intelligence? Well, he keeps yapping about how he knows “the best words,” and how he attended the “best college,” where he was an academic star. Just wondering: Has anyone seen this guy’s college transcript?

As CNN’s Chis Cillizza has noted, the president clearly is “overcompensating” for what appear to be some serious shortcomings.

My own view is that someone who tells you he is the “best” at anything, he usually isn’t. If he has to remind us that he is “not a racist,” well, you know …