Nor would I object if Hillsdale College, Pepperdine University, or any other traditional school chose to invite a Democratic or liberal graduation speaker whose views I oppose. I once attended a Pepperdine graduate school graduation address given by a liberal Los Angeles politician that was little more than an unhinged rant against George W. Bush — and politely clapped through her pathetic rambling.

All that is not today’s liberalism, which instead believes in pursuance of race, class, and gender equality by any means of intimidation and censorship necessary.

If science now allows a premature child to live outside the womb at 20 weeks, that knowledge must remain an irrelevant fact. Champions of abortion who used to insist that fetuses were not viable outside the womb simply have dropped that argument altogether. They are not interested any more in the issue of when life begins, but rather wedded deductively to the notion of terminating a pregnancy at almost anytime the mother might wish to do so. The unexamined career of Dr. Gosnell was not the aberration, but the logical fruition of contemporary liberalism’s unquestioned embrace of abortion.

I don’t have the expertise to know exactly to what degree, if any, man-caused carbon releases since the Industrial Revolution have heated up the planet, or whether the supposed heating is deleterious to the human condition, or whether the deleteriousness can be addressed by global statutes that are equitably enforced around the world without causing greater impoverishment and suffering.

But I do know something about philology and the historical circumstances behind both euphemism and the constant shifting of vocabulary. Thus why did “global warming” begat “climate change” that sometimes begat “climate chaos”?

And why, at this time of history’s greatest carbon releases, has the planet not warmed in the last 17 years? Why was data massaged to create the so-called “hockey stick” paradigm? Why sue satirist Mark Steyn for an inconvenient truth, or denigrate opponents as “deniers” as if they were some sort of Holocaust deniers, if the data is unimpeachable and speaks for itself?

Add in the Climategate email scandals and the green hucksterism of an Al Gore or the crony capitalism that leads to a Solyndra scandal, and there are liberal grounds for skepticism and ongoing debate. As for settled science, I once was told as teenager to take Vitamin C but avoid D, and now to take D but avoid C, in the manner that the PSA test was once the touchstone to diagnosing prostate cancer and now not so much, and then again in the future perhaps again essential to an early diagnosis. What most directly leads to heart disease — fatty foods, too much meat, too many carbohydrates, inflammation, or high cholesterol? Do we know yet the precise factors responsible for coronary disease when collating weight, genetics, exercise, and food intake? We know that the sedentary obese are at higher risk, but does science yet tell us why the thin with low cholesterol sometimes drop dead at 60?