The scientists of today think deeply instead of clearly. One must be sane to think clearly, but one can think deeply and be quite insane. ››Freethinkers are those who are willing to use their minds without prejudice and without fearing to understand things that clash with their own customs, privileges, or beliefs. This state of mind is not common, but it is essential for right thinking… ››Few people think more than two or three times a year; I have made an international reputation for myself by thinking once or twice a week. ››Think left and think right and think low and think high. Oh, the thinks you can think up if only you try! ››
