This thinker defined perception as a representation of “expression” or “the many in the one” in a letter to Des Bosses, a translator of his work. This thinker gave one of the earliest explorations of unconscious perception in a dialogue between Theophilus (-5[1])and Philalethes that critiques a rival chapter-by-chapter. David Chalmers claims that the inspiration for his philosophical zombie thought experiment rests in this thinker’s mill argument. This thinker argued (15[2])that all things are composed of (*) simple perceiving extensionless parts, (10[1])and he rejected (10[1])the theory of mind-body interaction in favor of pre-established harmony. For 10 points, name this thinker who wrote the monadology (10[2])and argued that we live in the best of all possible worlds. ■END■ (10[1])