The face is soft and pleasant, the forehead high, the brow clean. This man in his early thirties has wavy auburn hair and a mouth, small and gentle, poised on the verge of a smile that nonetheless never comes. The eyes, too, have a tentative look-- perhaps ready to dart fawnlike side to side. The hands, however, are prominent and purposeful. Hands of a pianist? A painter? Perhaps a dancer, designed to lift, suspend, and suggest? This is Otto Wacker. He is on trial in the old Moabit courthouse in central Berlin. He stands accused of knowingly selling forged art. It is April 1932.   Wacker has made a name for himself. Within a few short years he has risen from provincial obscurity to national prominence. First dancer, then art dealer, gallery owner, and publisher, he has turned heads. In March 1928 the Gallery Schulte on Unter den Linden, Berlin's famous promenade, home to libraries, embassies, a university, and the Imperial Palace, holds an exhibition of celebrity portraits from the world of film and theatre. One of those select images is of Otto Wacker.1 There he is in full glory on a wall of achievement. He represents youth, vitality, success. With his good looks and energy he embodies the aspirations of that postwar generation, enveloped as it is by the odour of death--some nine million had died in the Great War and at least twice as many in the influenza epidemic that followed-- and yet exuberant about life.   Suddenly, in that same year, 1928, Wacker's world implodes. He is accused of fraud, of selling forged pictures purportedly by Vincent van Gogh, an artist who lived in provincial obscurity akin to Otto Wacker's experience as a youth but who now, nearly thirty years after his death, has shot like a comet to stardom. The trajectories of artist and dealer have striking similarities. Four years later, in 1932, Wacker's case finally reaches the courts. He pleads innocence.   In the courtroom the young man is beset by a different generation, stooped and grey, bespectacled and earnest. All its members are primly attired, in legal garb or dark suits. The tone, among judges, lawyers, and witnesses, is sombre. Credibility is on the line--the integrity of experts, dealers, the art market, and even the legal system of the postwar German Republic. But beyond that, an entire world is called into question, a world of fixity, defined values, and acknowledged standards. Mired in an ever-deepening depression, the German economy is in shambles. In politics the rise of Adolf Hitler is the talk of the day. In the Moabit courtroom, legitimacy and authority are on trial, along with Otto Wacker.   That Vincent van Gogh is central to this drama is no coincidence. His life story and his art are key evidence of the mounting existential crisis that marks modernism--that spiritual journey of the Western world from a vision of moderation and progressivism to a culture of ever greater extravagance. By the early 1920s his fame is on the rise. His work, with its colour, energy, and implicit tragedy, obviously speaks to people, not just critics and collectors but the broader public. Many feel a deep kinship with this man who, in any conventional terms, was a complete failure in his life and in his art: he sold but one painting; he hurt people deeply; he spent time in an asylum; and he committed suicide. Yet, within a few decades of his death in 1890, his story is well known and the demand for his work far exceeds the supply. At the same time, as the acceptance in some quarters verges on worship, elsewhere the denunciations multiply. For his detractors, Van Gogh represents disintegration and collapse, the very death of art, of beauty and truth. Vincent van Gogh has become a symbol of the modern condition that some see as an eruption of life, a birthing, and others regard as a hysterical move from stability to excess.   The trial of Otto Wacker lasts for the better part of two weeks. Emotions run high: reputations are at stake, worlds in conflict. The defendant could have been the subject of a Van Gogh portrait-- his eyes give him the look of a naïf, a victim. He would fit alongside Armand Roulin (F 492), The One-Eyed Man (F 532), Young Man with a Cap (F 536), or even the iconic Self-Portrait with Bandaged Ear (F 527). Wacker's life itself is plausibly a modern work of art: truth and falsehood, beauty and ugliness, all in one, with categories blurring and collapsing.   If modernism and postmodernism, the two dominant cultural "isms" of the past century, have had a unifying motif, it is the quest for authenticity and the concomitant breakdown of previous distinctions. The tale of Otto Wacker and Vincent van Gogh takes us to the very heart of that quest that confronts us all. What is real? What is true? Excerpted from Solar Dance: Art, Fame, and Our Crisis of Truth by Modris Eksteins All rights reserved by the original copyright owners. Excerpts are provided for display purposes only and may not be reproduced, reprinted or distributed without the written permission of the publisher.