The German 10-Mark note (pre-Euro) featured Carl Friederich Gauß and his equation describing the “normal curve” of probability distribution.

An important scientific innovation rarely makes its way by gradually winning over and converting its opponents: it rarely happens that Saul becomes Paul. What does happen is that its opponents gradually die out, and that the growing generation is familiarized with the ideas from the beginning.

Max Planck (1858-1947)