I was informed by Jagdish Mehra that some discussion on the question of physics and philosophy would be of interest to the participants in the symposium, and I agreed to talk about it. I am glad to express some of my views on physics and philosophy. I wondered what might be interesting and I thought that the problem could perhaps be dealt with in four steps: a discussion of objectivism which has been so much in our minds at this symposium, a mention of positivism, the philosophy of Kant, and then the philosophy of Plato, which I consider to be important in this respect.