For over half a century Stanley Rushbrooke played a leading role in teaching and research in statistical mechanics. He started his academic career at the University of Cambridge as a research student of R.H. (later Sir Ralph) Fowler a few years before the start of the Second World War. After a brief spell as a research assistant at the University of Bristol, he moved to University College Dundee in 1939, where he enjoyed a fruitful collaboration with C.A. Coulson. The two became lifelong friends, sharing a deep Christian faith and a common interest in scientific problems.