A new national corps of “master teachers” trained in the humanities and social sciences and increased support for research in “endangered” liberal arts subjects are among the recommendations of a major report to be delivered on Capitol Hill on Wednesday.

The report comes amid concern about low humanities enrollments and worries that the Obama administration’s emphasis on science education risks diminishing a huge source of the nation’s intellectual strength. Requested by a bipartisan group of legislators and scheduled to be distributed to every member of Congress, it is intended as a rallying cry against the entrenched idea that the humanities and social sciences are luxuries that employment-minded students can ill afford.

People talk about the humanities and social sciences “as if they are a waste of time,” said Richard H. Brodhead, the president of Duke University and a co-chairman of the commission that produced the report. “But this facile negativism forgets that many of the country’s most successful and creative people had exactly this kind of education.”

Those people, Mr. Brodhead pointed out, include both President Obama (political science major) and Mitt Romney (English), as well as most of the 54 members of the commission, which includes distinguished jurists, business leaders, artists, scholars, university presidents and politicians, many of whom offer stirring testimonials on the value of their own liberal arts training.