In the epilogue, the author once again emphasizes the importance that microbes from hell have played in the history of life. The author then wonder why it is important to retrace the most ancient history of life on our planet and more generally why fundamental research is essential for our society. This is illustrated by the history of William Gilbert, who started working on electric phenomena in the sixteen century, at a time when nobody could have imagine the future impact of his work. In conclusion the author reminds us that science is a true pleasure when it aims is to uncover the secrets of nature.
Keywords: fundamental research, history of life, William Gilbert