Professor Born, one of the most distinguished physicists of our time, has selected some of his most popular writings covering a period of thirty years, framed between his introduction to Einstein's Theory of Relativity (1921) and the postscript to the American edition of The Restless Universe (1951). It includes several discussions of Einstein's work, a short autobiography and articles dealing with the philosophical background of physics and its revolutionary changes during Professor Born's lifetime. Each treatment of a problem illuminates it from a different angle - all of them from a personal point of view.