Little nuggets of thoughts to turn over and examine.
These often lead to long monologues as you decide what you yourself think about the topic or to further reading, to research, and to then figuring out what you yourself think on the topic. (Simply making the quote into a coffee mug or bumper-sticker rather short circuits that process, yes?)
From a webcast of the story "Edge of Your Seat" on the radio show 99% Invisible this quote from architect Ludwig Mies van der Rohe, "A chair is a difficult object. A skyscraper is almost easier."
Mies's Barcelona chair - Public domain image from Wikimedia
And from the book, Bambi vs. Godzilla: on the Nature, Practice, and Purpose of the Movie Business a snippet, a definition only, by David Mamet, "...entertainment, which is to say tincture of art..."
Tincture of art = art extracted by alcohol.
Not completely true, of course, but plenty truthy enough for any entertainment-artist's coffee mug.