Our technology webbed our lives are still not free of the fallacies of the past as witchcraft, faith healing, demons, UFOs. The others such as pseudoscience, alien abduction, channeling past lives, and communal hallucinations commending growing attention. Intelligent decision making to live a fulfilled life as an individual or as a society requires scientific thinking. I my talk, I will be referring of Carl Sagan’s sayings how he debunks these ills.