Ukrainian artist Kazimir Malevich (1878-1935) started the Suprematist art movement. Its name echoes racist groups, but it actually has nothing to do with that. He thought that the value of art was not that it could represent the real world, but that it could make you feel. He explained, "Under Suprematism I understand the supremacy of pure feeling in creative art."
I am not posting his suprematist art, though, because the paintings below are the ones that evoked the most feeling in me:
The Reaper on Red
The Knife Sharpener
Taking in the Rye
~ Malevich (spelled Kasimir here) on Artcyclopedia.
~ Work by Kazimir Malevich sold for record $60 million (2008)