We must not believe the many, who say that only free people ought to be educated, but we should rather believe the philosophers who say that only the educated are free. Epictetus
Workers of all lands unite. The philosophers have only interpreted the world in various ways the point is to change it. Karl Marx
Philosophers are adults who persist in asking childish questions. Isaiah Berlin
There are nowadays professors of philosophy, but not philosophers. Henry David Thoreau
When coins rattle, philosophers are silent. Serbian Proverb
Many talk like philosophers yet live like fools. Traditional Proverb