Gentlemen, there is business before your house and I propose to get right to it, obeying, as far as I can, what seems to me becoming to be known as the Republican law of gravity.

Address to the AFL Convention in New York City, transcribed in The New York Times, September 23, 1952. In context, Stevenson was saying that the Republicans were humorless, in contrast to his own sense of humor. This quote resembles the unsourced and confusing version, "I refuse to personally criticize President Eisenhower, I will not submit to the Republican concept of gravity."