The phrase "think for one's self" is a pleonasm. Unless one does it for one's self, it isn't thinking.
John DeweyMen live in a community in virtue of the things which they have in common; and communication is the way in which they come to possess things in common. What they must have in common in order to form a community or society are aims, beliefs, aspirations, knowledge - a common understanding - likemindedness as the sociologists say.
John DeweyWe have three approaches at our disposal: the observation of nature, reflection, and experimentation. Observation serves to assemble the data, reflection to synthesise them and experimentation to test the results of the synthesis. The observation of nature must be assiduous, just as reflection must be profound, and experimentation accurate. These three approaches are rarely found together, which explains why creative geniuses are so rare.
John DeweyWhat the best and wisest parent wants for his own child, that must the community want for all of its children.
John Dewey