Ars magna (the great art) -- Two tales of Galileo -- Christiaan Huygens and pendulum clocks -- Secrets of the cycloid -- Blaise Pascal -- The beginnings of higher geometry -- Leonhard Euler -- Joseph Louis Lagrange -- Pierre-Simon Laplace -- Prince of mathematicians -- Felix Klein -- The magic world of Henri Poincaré -- The enigma of Ramanujan -- On the advantages of coordinates and the art of chaining hyperboloids -- The complex world of Roger Penrose