There’s a piece of art on the moon: a ceramic disk inscribed with six drawings by noted American artists. It went on Apollo 12 mission’s landing module, which took two astronauts to the lunar surface in November 1969. One artist, Leo maverick Andy Warhol, drew the image of a stylized penis, similar to what’s scrawled public restroom walls. “He was being the terrible bad boy,” the project’s organizer said about Warhol’s contribution. In the weeks ahead, don’t be like Warhol. If you’re asked to add your self-expression to a big undertaking, tilt toward sincerity, reverence and dignity.