Pure entertainment is not an egotistical lady singing boring songs onstage for two hours and people in tuxes clapping whether they like it or not. It's the real performers on the street who can hold people's attention and keep them from walking away.
“The automobile is technologically more sophisticated than the bundling board, but the human motives in their uses are sometimes the same.”
“The squares of the periodic times are to each other as the cubes of the mean distances.”