discussion of the many faces of relativism occupies a highly prominent place in the epistemological literature. protagoras in ancient greece and nelson goodman in the modern period are two most notable proponent of relativism. in the present article, i discuss and explain relativistic approaches of this two important relativist. i will first briefly define and review some faces of relativism. t...

From the ancient times, there are three basic approaches for the interpretation of the different psychic phenomena: the organic, the psychological, and the sacred approach. The sacred approach forms the primordial foundation for any psychopathological development, innate to the prelogical human mind. Until the second millennium B.C., the Great Mother ruled the Universe and shamans cured the dif...

from bygone to now, colors are aspects of nature that have been regarded scientists. in ancient greece, essence of color and its relationship with light and vision in natural philosophy and especially optics has been studied. results of greek thinkers in the field chromatics, from pythagoras to aristotle through of translating scientific and philosophical texts, received to muslim scholars and ...