Oftentimes we make assumptions based on our knowledge and past experience, and they prove to be correct. But there are times when our conclusions are not correct, and by assuming they are without actually examining the facts on a case by case basis, the consequences may prove to be devastating. Best we not take anything for granted. If we wish to trust our beliefs and intuition, that's fine. But it behooves us to verify with facts before opening our mouth and/or taking action.