Hi Norbert, I just wanted to say it was great to have you as a colleague. Your support to me and your guidance in the early stages has been invaluable and thanks to you I managed to fulfill my dream of opening my own company, which I hope will help other people in the future. I will miss talking to you, especially at the Away Day! I don't think I have ever told you and maybe it was not even necessary but I had a great respect for you, not only as a scientist but also because you have always been genuine and have always spoken your mind, no matter what the topic was. It was really a breath of fresh air. I am sad about what happened, I would have loved to have you around more, but at least I am thankful our paths crossed. Good-bye Norbert.

Norbert had tremendous contributions to my career and will always be an inspiring scientist for me. I remember approaching Norbert on a Friday night in 2019 to propose a collaboration between his team at Imperial College and mine at Southampton Uni. Within few years, this collaboration became very fruitful, leading to several publications, a large grant and several awarded doctorate degrees. Without Norbert's passion, curiosity, enthusiasm, and positivity, we would have never been where we are now.

Norbert was always so positive, even when something frustrated him. Happy memories of talking Mark Knopfler and Led Zeppelin over a beer or two at away days.

We hope that you find this tribute to Norbert a place of comfort, support and inspiration for you to visit whenever you want or need to.

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