Question: Many years ago an expert on thinking made this observation: "probably the main characteristic of the trained thinker is that he does not jump to conclusions on insufficient evidence as the untrained man is inclined to do." (Note: At that time, he and man were commonly used to denote both men and women) Think of several recent occasions when you formed opinions with little or no evidence. In each case state the opinion and explain what kind of evidence would be necessary to support it adequately.