Consciousness of myself, combined with complete ignorance of everything that does not fall within my sphere of thinking, is the most telling proof of my substantiality outside God, of my original existence
Socrates didn't care to visit the theater, as a rule, except when the plays of Euripides (which some think, he himself had helped to compose), were performed.
We would be able neither to remember nor to reflect nor to compare nor to think, indeed, we would not even be the person who we were a moment ago, if our concepts were divided among many and were not to be encountered somewhere together in their most exact combination.