In this collection of writings, the logbook of an intelligence always on the move, Carlo Rovelli follows his curiosity and invites us on a voyage through science, history, philosophy and politics. Written with his usual clarity and wit, these pieces range widely across time and space: from Newton's alchemy to Einstein's mistakes, from Nabokov's butterflies to Dante's cosmology, from travels in Africa to the consciousness of an octopus, from mind-altering psychedelic substances to the meaning of atheism. Charming, pithy and elegant, this book is the perfect gateway to the universe of one of the most influential scientists of our age.