Full Idea
Unless a man becomes an adequate philosopher he will never be an adequate speaker on any subject.
Gist of Idea
Only a good philosopher can be a good speaker
Source
Plato (Phaedrus [c.366 BCE], 261a)
Book Reference
Plato: 'Phaedrus and Letters VII and VIII', ed/tr. Hamilton,Walter [Penguin 1973], p.73
A Reaction
Depends. Hitler showed little sign of clear philosophical thinking, but the addition of lights and uniforms seemed to sweep reasonably intelligent people along with him.