Simon has been one of the first resarchers and activists in workers' health that I met in the early 80'. In the European & international neworks, he has been very open to our different ways in acting for changes in conditions of work and for worker's rights. He was a friend and a reference in our struggles. I will ever remember of our meetings and how he was able to listen to us even when we had some difficulties to express our thoughts in English. Simon, our international network will miss you too much.