Having to do with the mental process or faculty of knowing, including such things as analysis, application, awareness, comprehension, perception, reasoning, synthesis, evaluation, and meta-cognition.Quote: "A man paints with his brains and not with his hands." Michelangelo Buonarroti (1475-1564), Italian Renaissance artist. Also see art therapy, Bloom's Taxonomy, epistemology, genius, knowledge, meaning, motivation, multiple intelligence theory, research, and science and art.