Newton, 1666
[[A guy with long white hair holds up a sheet of paper.]]
Newton: I've invented calculus!

Leibniz, 1674
[[A man with long black hair holds up a sheet of paper.]]
Leibniz: I've invented calculus!

Newton: Really? Sounds a little bit...

[[Newton puts on a pair of sunglasses.]]

Newton: [[in italics]] Derivative.

{{Title text: YEEEEEEAAAAAAHHHHHH!}}