Tribute to Arnulfo Zepeda Domínguez

On November 30, 2020, the world of High Energy Physics lost one of its most brilliant research professors. Dr. Arnulfo Zepeda Dom ́ınguez left a great legacy of scientific results, new researchers’ training, schools’ creation, new experiments, new research centers, and invaluable scientific outreach work. In this contribution, a group of his students, colleagues, and friends describe him as a professor and leader through several anecdotes.