Physics in My Generation : Springer : 9780340169636 : 034016963X : 01 Jan 1969 : THE idea of collecting these essays occurred to me when, in the leisure of retire­ ment, I scanned some of my own books and found that two of the more widely read show a startling change of attitude to some of the fundamental concepts of science. These are Einstein's Theory of Relativity of 1921 and the American edition of The Restless Universe of 1951. I have taken the introduction of as the former the first item of this collection, the postscript to the latter as its last. These books agree in the relativistic concept of space and time, but differ in many other funda­ mental notions. In 1921 I believed-and I shared this belief with most of my contemporary physicists-that science produced an objective knowledge of the world, which is governed by deterministic laws. The scientific method seemed to me superior to other, more subjective ways of forming a picture of the world­ philosophy, poetry, and religion