The tenets of scepticism do not require an advanced degree to master, as most successful used car buyers demonstrate. The whole idea of a democratic application of scepticism is that everyone should have the essential tools to effectively and constructively evaluate claims to knowledge. All science asks is to employ the same levels of scepticism we use in buying a used car or in judging the quality of analgesics or beer from their television commercials.

— The Demon-Haunted World by Carl Sagan, Ann Druyan (Page 80)