A prominent figure in the scientific revolution of the 17th-century, Johannes Kepler was an eminent German mathematician, astrologer and astronomer. He is renowned for his laws of planetary motion that was based on his works ‘Epitome of Copernican Astronomy’, ‘Astronomia nova’ and ‘Harmonices Mundi’. His thoughts and works also laid the foundation for universal gravitation as propounded by Issac Newton. He also made significant contribution to the fields of philosophy, geometry and optics. He has been the most illustrious figures in astronomy and a number of astral elements were named after him including ‘The Kepler Moon Crater’ and ‘Kepler’s Crater on Mars’. We bring to you words, thoughts, opinions, quotes and sayings by Johannes Kepler, a genius mathematician hero. Go through the quotes and thoughts by Johannes Kepler on criticism, time, nature, great, mind, focus, philosophy, stars, mean, squares, distance, equal, possible, man, thoughtless, preference, diversity, rich, science, progress, human, shame, measurement, Pythagoras, treasure, gold, math, geometry, superstition, creationism, insanity, earth, books and more.