If life is a grand experiment, the “initial conditions” faced by young Mario Capecchi were undeniably harsh. Displaced at the age of four during the chaos of World War II, the first lesson he learned was patience, and the only question that mattered was where to find his next meal. In the raw instincts of survival, he forged the most fundamental qualities of a scientist.

Years later, when he submitted his groundbreaking proposal on gene targeting to the National Institutes of Health (NIH), the response was blunt: impossible. But where others saw a full stop, Capecchi saw a massive question mark. Thus began a high-stakes gamble of uncertain odds, one in which he staked his entire professional future on a vision only he could see.

“The difficult you do right away; the impossible takes a little longer,” his aunt often said. Years later, he proved it true. By pioneering gene-targeting technology and creating the first “knockout mice,” he laid the methodological foundation for modern genetics and the study of human disease, an achievement that earned him the 2007 Nobel Prize in Physiology or Medicine.

Yet Capecchi’s story extends far beyond scientific accolades. He sees research as a sophisticated form of puzzle-solving, operating on the belief that in science, the question is often more vital than the answer; questions are the lighthouses that guide our direction. He redefines experimental failure not as a loss, but as “simply a step.” This unique perspective is probably a direct inheritance from his early survival wisdom: the ability to decompose overwhelming adversity into manageable, sequential strides.

At 88, Capecchi remains a portrait of undiminished vitality. He runs every day, embodying the philosophy of a mind and body in constant, synchronized motion. During his recent visit to China, he engaged with a new generation of graduate students and researchers, delivering a message that was as simple as it was powerful: Preserve the curiosity to ask “Why?” at all costs. To him, this insatiable spirit of inquiry is the fundamental fuel that drives both science and society forward.

From the streets to the pinnacle of global science, Capecchi has spent a lifetime demonstrating that ultimate resilience can pierce through suffering, and that pure curiosity can shatter any “impossibility.” His story is not merely a motivational speech; it is a profound exploration of human potential.

Stay tuned to CGTN Health Talk for this special interview, as we listen to a legend share how he transformed the wisdom of survival into a force that continues to shape the future. 

Executive Producer: Zhang Jingwen

Producer: Yang Sha

Directors: Lu Wei, Wang Yuxin

Editor: Ruan Lingbo

Videographers: Ban Jinting, Zhang Haosheng, Ma Guoqing

Cover Image Designer: Du Chenxin, Li Yueyun

Editor's note:

Mario Capecchi, winner of the 2007 Nobel Prize in Physiology or Medicine, revolutionized modern biology through his pioneering work in gene targeting. His scientific journey began on the war-torn streets of Italy, where the hardships of a displaced childhood forged a rare and ironclad resilience, the very tenacity that would later empower him to achieve a feat the scientific establishment once dismissed as “impossible.”

Through this in-depth dialogue, we explore more than just a list of breakthroughs; we reveal a unique life philosophy that treats science as a grand game of puzzle-solving and views every failure as a necessary step forward. Now approaching his ninth decade and still full of vitality, Capecchi visits China to share a central belief with the next generation, that curiosity is a key driving force behind scientific progress.

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