"The die is cast; I have written my book; it will be read either in the present age or by posterity, it matters not which."
— Johannes Kepler
The Die Is Cast I Have
The die is cast; I have written my book; it will be read either in the present age or by posterity, it matters not which.
About this quote
Johannes Kepler wrote this triumphant declaration in Harmonices Mundi (1619), the work in which he announced his third law of planetary motion — that the square of a planet's orbital period is proportional to the cube of its average distance from the Sun. Kepler had spent over twenty years searching for this harmonic relationship. The declaration echoes the ancient idea that the cosmos embodies musical harmony, a theme Kepler pursued throughout his career.
Source
Harmonices Mundi (1619)