Plato's earthly life ended in the year 347 B. C. At the same time, however, began his posthumous life - a life of great influence and fame leaving its mark on aU eras of the history of European learning -lasting until present times. Plato's philosophy has taken root earlier or later in innumerable souls of others, it has matured and given birth to new ideas whose proliferation further dissemi nated the vital force of the original thoughts. It happened sometimes, of course, that by various interpretations different and sometimes altogether contradictory thoughts were deduced from one and the...