Best Quotes on Critical Thinking

Ninety per cent of thought force is wasted by the ordinary human being, and therefore he is constantly committing blunders; the trained man or mind never makes a mistake. When the mind is concentrated and turned backward on itself, all within us will be our servants, not our masters.

The first duty of a revolutionary is to be educated.

A country that does not know how to read and write is easy to deceive.