Full Idea
Unless communities have philosophers as kings, or the people who are currently called kings and rulers practise philosophy with enough integrity, there can be no end to political troubles.
Gist of Idea
Only rule by philosophers of integrity can keep a community healthy
Source
Plato (The Republic [c.374 BCE], 473d)
Book Reference
Plato: 'Republic', ed/tr. Waterfield,Robin [OUP 1993], p.193