If you want to accomplish something in the world, idealism is not enough–you need to choose a method that works to achieve the goal. In other words, you need to be pragmatic.–Richard Stallman, Copyleft: Pragmatic Idealism
A tegeltjeswijsheid is an adage/aphorism/truism/what-d’ya-call-’ems printed on a ceramic tile. As I need to pull out this quote from the great open source philospher Richard Stallman over and over again, I might as well make a linkable version.