Astroturfing. This concept is very inexpensive and most effective method of convincing people of something.  Strongly held the leaves that are not based on fact or common mass population grew this effective tool. Vaccination without regard to your system health in order to make billions of dollars for pharmaceutical industry. Pesticides such as round up and genetically modified foods are required for sustaining creasing population of the world when in reality these only increase profits for the food industry and destroy critical part of the immune system.

Always think about who is paying for the information that you are consuming.

Cornerstones I believe will not hold weight if they are based on what you are told. They must be strengthened based on facts and your own research. People are naturally interested in their own self interest. No one cares about your kid as if it were a life and death other than you. Do not put their lives in others hands.