As I said, we had only four groups all coming from Louvain to start this but I felt we needed... we needed more; we needed more disciplines, we needed more people, we needed a less exclusively Louvain membership. And so I wanted it to be international, national, and so I made a deal with the university and said, 'Well, we want to be together on this new campus, this new medical campus, in the same building, but in addition we would like you to build a building that's twice the size that is needed, and if you just build... build the bricks and mortars of that building, we will find the money to finish off the labs, equip the labs, we will find the people to work in them on an international basis and with as main criteria excellence, quality... not necessarily field, but quality.' That's another point I learnt from Rockefeller. 'And we'll find the money.' And that was a very rash promise but I was very fortunate in fairly rapidly finding means so that the institute could be completed and laboratories occupied by new... by new teams. The institute was opened officially by Prince Albert – now King Albert II – I forget the exact date, but was in April 1975. But obviously it had been built before that, or at least part of it had been built and completed and some of the labs were already occupied; my own lab was already occupied at that time. Now, April 1975: that's five months after I went to Stockholm to collect my Nobel Prize, so this was really a very fortunate coincidence because a Nobel was obviously a good argument and a good excuse to try and get some money out of the Belgian government. It didn't last very long, but at least I was able to get enough to finish the... the institute and so that was extremely useful, and then another thing happened that was very fortunate. By some happy coincidence – maybe due to the Nobel Prize, I don't know – I was asked to act as an advisor to a newly created research organisation called the Ludwig Institute for Cancer Research.