Pierre Sernet is best-known for his acclaimed photographic art series dubbed "Guerrilla Tea" (officially titled "One"), in which he set up a makeshift traditional Japanese tea room in contrasting settings in over 30 countries, and invited random passers-by to participate in a tea ceremony. From an Indian desert village to the skyscrapers of New York; from the foot of Mount Fuji to a French airport in the midst of a security threat, the photographs are a compelling whisk of calm, curiosity and contrasting cultures. Pierre, who is also an art dealer, collector, and entrepreneur who founded a major online database for fine art, shares how his view of humanity has been shaped by these experiences, and what he'd say in his letter to his younger self.

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