In this age of fake news, how can we revive an appetite for truth and scientific rigor? Gilles Pialoux pays tribute to seven influential, often overlooked figures who changed medicine: Madeleine Brès, Marie Curie, Alexandre Yersin, Zénon Drohocki, Marthe Gautier, Hippocrates, and James Barry. Through vivid and well-researched portraits, he offers a sensitive and enlightening defense of science, brilliantly blending history and personal narrative.