I discourage passive skepticism, which is the armchair variety where people sit back and criticize without ever subjecting their theories or themselves to real field testing. Tim Ferriss
I encourage active skepticism - when people are being skeptical because they're trying to identify the best course of action. They're trying to identify the next step for themselves or other people. Tim Ferriss
In the United States, the Supreme Court's decision of 1954, outlawing segregation in school systems, was greeted with mixed feelings of hope and skepticism by African-Americans. John Henrik Clarke
Where journalists have gotten themselves in trouble over the last few decades is that their skepticism often extends only to American officials, the U.S. military and Republican politicians. Linda Chavez