Hermann Bondi quotes

Hermann Bondi was an Austrian mathematician and cosmologist, renowned for his work in general relativity and cosmology. A leading advocate of the steady-state theory of the universe, his research shaped twentieth-century astrophysics. He made significant contributions to science administration and public understanding of science. Here are 5 of his quotes:

On the most usual assumption, the universe is homogeneous on the large scale, i. e. down to regions containing each an appreciable number of nebulae. The homogeneity assumption may then be put in the form: An observer situated in a nebula and moving with the nebula will observe the same properties of the universe as any other similarly situated observer at any time. (Hermann Bondi)
The kind of lecture which I have been so kindly invited to give, and which now appears in book form, gives one a rare opportunity to allow the bees in one's bonnet to buzz even more noisily than usual. View quote
Hermann Bondi
All science is full of statements where you put the best face on your ignorance, where you say: true enough, we know awfully little about this, but more or less irrespective of the stuff we don't know about, we can make certain useful deductions. View quote
Hermann Bondi
The landscape has been so totally changed, the ways of thinking have been so deeply affected, that it is very hard to get hold of what it was like before... It is very hard to realize how total a change in outlook Isaac Newton has produced. View quote
Hermann Bondi
Time is that which is measured by a clock. This is a sound way of looking at things. A quantity like time, or any other physical measurement, does not exist in a completely abstract way. We find no sense in talking about something unless we specify how we measure it. It is the definition by the method of measuring a quantity that is the one sure way of avoiding talking nonsense about this kind of thing. View quote
Hermann Bondi