THROUGHOUT MY CAREER AS a forensic pathologist my younger only sibling has managed to equate what I do with being a mortuary scientist or simply someone who deals with messes no one else wants to touch.

Somehow it’s the logical conclusion to my taking care of our dying father when I was a child. I became the go-to person when something was painful or disgusting and needed tending to or cleaning up. If an animal got run over or a bird flew into a window or our father had another nosebleed, my sister would run screaming to me. She still does if she needs something, and she never takes into account convenience or timing.

But at this juncture in life my attitude is the two of us aren’t getting any younger. I’ve decided to make a real effort to keep an open mind even if my sister might be the most selfish human being I’ve ever known. But she’s bright and talented, and I’m no saint either. I admit I’ve been stubborn about acknowledging her value, and that’s not fair.

Because it’s possible she really might know what she’s doing when she mandates that I should speak less like a legal brief or a lab report and more like a pundit or a poet. I need to turn up the volume, the brightness and the color, and I’ve been keeping that in mind as I polish my opening remarks, including cues such as underlines for emphasis and pauses for laughter.

I take a sip from a bottle of water that’s hot enough to brew tea. I nudge my dark glasses up as they continue to slip down my sweaty nose. The sun is a relentless blacksmith hammering in twilight’s fiery forge. Even my hair is hot as my low-heeled tan leather pumps click-click on bricks, my destination now about ten minutes out. Mentally I go through my talk:

Good evening Harvard faculty, students, fellow physicians, scientists and other distinguished guests.

As I scan the crowd tonight I see Pulitzer and Nobel Prize winners, mathematicians and astrophysicists who are also writers, painters and musicians.

Such a remarkable collection of the best and the brightest, and we are extremely honored to have the governor here, and the attorney general, and several senators and congressmen in addition to members of the media, and business leaders. I see my good friend and former mentor General John Briggs hiding in the back, slinking low in his seat, cringing over the thought of my being up here. [Pause for laughter]