Marcos Siqueira: Paths of Observation To observe. This is the verb that comes to mind when I think of Marcos Siqueira’s paintings. Perhaps this is because the term recurs so often in our conversations. Siqueira frequently refers to his habit of sustained looking, of close attention, that he carries into his everyday activities. This daily exercise of slowing down and calibrating the senses has given him a discipline of attention to which almost nothing escapes: the geometric variation of the…