States of Mind (I) - Those who Stay or Study for 'States of Mind' or 'Those who Stay' or States of Mind (I) - Those who Stay (Stati d'animo (I) - Quelli che restano), by Umbero Boccioni, 1911, 20th Century, oil on canvas, 71 x 96 cm

Italy, Lombardy, Milan, Museo del Novecento, Whole artwork view, The painting, part of a triptych, is a study for the final version now exposed at MoMA in New York, The triptych represents the three successive moments of a greeting to the train station, In this painting the representation of those who stay are made through a quite monochrome green vertical lines where you can see filamentous figures. (Photo by Luca Carrà / Electa / Mondadori Portfolio via Getty Images)