Plato (ca. May 21? 427 BC ca. 347 BC) was an immensely influential classical Greek philosopher, student of Socrates, teacher of Aristotle, writer of philosophical dialogues, and founder of the Academy in Athens.
There will be no end to the troubles of states, or of humanity itself, till philosophers become kings in this world, or till those we now call kings and rulers really and truly become philosophers, and political power and philosophy thus come into the same hands".
All things will be produced in superior quantity and quality, and with greater ease, when each man works at a single occupation, in accordance with his natural gifts, and at the right moment, without meddling with anything else.
Whenever a person strives, by the help of dialectic, to start in pursuit of every reality by a simple process of reason, independent of all sensuous information -- never flinching, until by an act of the pure intelligence he has grasped the real nature of good -- he arrives at the very end of the intellectual world.