 So, Thibault joined the IHES in 1989 and actually for good, then he resigned of CNRS a few years later. Before that he had been at Ecole Normale in 1970 and then a PhD in France and in Paris actually. Then four or five years in Princeton and with various hats actually, two years? Well, it says more, but anyway. And so I wanted to show you just a few signs of the presence of Thibault of IHES. Okay, so I don't have the screen there helping me, so I have to look here. Here is Thibault and here is a statement by Thibault in the book called Les Deschifreurs, in which he says, ensuite j'avais, que j'avais beaucoup de chance d'avoir été choisi pour faire partie de cette débaillie scientifique si humainement chaleureuse que je devais me surpasser pour mériter cette chance et que je serais intellectuellement et personnellement heureux à IHES. It's up to him now to tell us whether it's indeed what happened. Here is the version in English for those of you who are uncomfortable with the French. Actually, I also can show you in case you prefer Chinese to see it in Chinese. And here is Thibault's signature in Chinese, so you can't miss it. But maybe you prefer Japanese, so you can get that. Or you prefer Korean, and then you get that. So this was really the statement by Thibault to open. Of course, what I want to talk about is science and briefly. Of course, the topic in which Thibault is working, which is general activity and in all dimensions of the subject, a priori looks for IHES as ideal because it's a topic in which you cannot separate the physics and the mathematics. And as you know, IHES has been built with the idea that mathematicians and physicists should work closely together. And so therefore this topic looks really extraordinary. But actually what is also very extraordinary, as you know, the person who really played a key role for relativity theory is Albert Einstein, already with a special relativity in 1905, but of course later on with a general relativity in 1915. And really what has been extraordinary is developments in the last 40 years. And a development which happened, of course, on the side of the physics with the new objects which allowed to really get the test of the theory of general activity, but also a wonderful extraordinary visionary attempt to detect gravitational waves. But also on the mathematical side, there have been extraordinary progress on the subject. The Einstein equations are very complicated, very complicated systems of nonlinear partial differential equations. And so that's something. And of course the key point is that Thibault was one of the key actors with a few other people who are in the room here of this extraordinary development. But maybe one thing I want to mention, because I know and I had the good fortune to discuss that with Thibault a few times, is also some efforts which indeed didn't conclude fully which was the effort with the step which is the test for equivalence principle, satellite test for equivalence principle. As you know the equivalence principle of inertial mass and gravitational mass is at the very foundation of general relativity. And therefore I think this effort to really test this equivalence principle with a few more digits is very important. So Thibault worked very hard at the step which I don't know whether there's a future for this at the moment now or is there? When I think about it, tell us something. The response of nature to our effort, not our mind. To Stanford and to Thibault being present there and suggesting an observation in astrophysics which was then Michael Kramel will report to you. I think Thibault is not so. Yes, yes. Okay, so anyway, so this combination of a topic which was ideal for IHS and the very central role that Thibault played with a number of other players, many are here, in the development of this subject of course has been extremely important. And also another thing which Thibault did a lot, he brought to IHS a number of collaborators and I'm just going to show a few of them so I don't know where, oh, you're over there. And actually I did teach general activity jointly with Natalie for a number of years which was very good, but also you're here, also with Gary Gibbons and also of course, whoops, and you're here, so wonderful. So I think these are some of the people who really spent quite extensive time here and working with him. But also some other collaborators who are here and here is Herman Nicolai who is over there. And of course two ladies who have been very important in theoretical physics so who played a very key role in relation with the development of modern physics, Cécile David who left us unfortunately, but she was visiting, she was a member of the board of the IHS board for a number of years and Yvonne Chauquet-Bruard who actually after she retired from the university used to come regularly to the institute and Thibault suggested that she should really have the possibility of staying here. And so Yvonne, I know, was very pleased with this possibility. So as you know Thibault has been receiving a number of distinctions. One of them which of course is very important for anybody working in general activity is the Einstein Medal which he got in 1996 in Bern. And he was elected to the academy as a full member in 1999 but also he got the légendeur in 2010 and here you see him, the person who gave him the légendeur with the en vertu des pouvoirs conférés par le président de la République which is the normal formulation is Philippe Stark a good friend of Thibault who has been also associated with the institute in some way. We discussed with him a number of times. He got many other rewards and one of course which for French people is very important is the gold medal of CNRS that he got jointly with Alain Briet in 2017. So here is a picture with Alain, Briet and Thibault and with our minister Mrs. Vidal on the occasion of the ceremony. But of course he got later on some more distinctions and actually in last year there's been incredible accumulation of such and of course the breakthrough price was one of them. Another price given by the ENFN Italian is the Galileo Galileo Medal and also very recently of course another price which I don't have pictures because the ceremony is not yet, when is it planned? For which level? Anywhere in the summer. Okay, very good. Another very important contribution of Thibault of course he produced many research articles I don't have to tell you, you have read many of them but also many also scientific books but also another thing that he did was to publish books for the general public and one which I personally cherish a lot is a joint venture with Jean-Claude Carrière who for French people is a well-known movie person. He has been behind the script of a number of movies but also books, he had very interesting books very actually in-depth knowledge of Indian mythology actually I personally met him before I was director of HES in Mumbai, in Bombay and anyway so this book I find it always very interesting to read. 2002, another one which is very important. In 2005 you measure that it's one century after the first The Anus Mirabilis by Einstein another one of course I'm skipping a few because he has several which is some recording in 2010 and also another one which I'm sure meant a lot of work jointly with an artist which is 2016, this comics on the Quantic world. So these are of course next to a number of other issues, a number of contributions by Thibault related to interviews in the radio or also of course chapters in books and so on and so his contribution to making the science visible, well-known and accessible to a large number of people was very important. But one thing I should not skip is music of course as you know the director of HES has a number of things to do but my knowledge of music was not enough to be able to buy a decent piano the one who is here so the person who chose the piano is actually Thibault after we tried a few, he tried a few and other people tried a few for him and here you see that in this picture that even while playing the piano we can talk to a mathematician and Victor Katz is talking to him on this picture with the piano. But of course the piano very often Thibault was also playing with other people so this is a piano à quatre mains with Hugo Moschela who is somewhere here you're already in the back and this was a celebration, a Christmas celebration at HES and they were playing together and helped by Ingrid for this purpose. But probably you have noticed that there was already very often somebody present in all the pictures who is of course Ulis who was there and also he kept also the staff busy because he needed to be trained to really be an active dog. So, thank you so much Thibault.