Margherita Hack, the more 'great Italian scientist (living) said he does not believe in even if he saw a ghost. And rightly so. The skepticism is not 'water. If Margaret saw a ghost one of these assumptions apply:
1. 's observer is dreaming and the image will fade away' when you wake up
2. 's observer has contracted a form of schizophrenia particularly severe. After hearing the voices now sees the ghosts
3. the 'entity' is not a ghost but
a. extraterrestrial creature
b. a land creature so far escaped observation
4. the 'entity' is the artifact of an alien power or some scientific secret Earth organization, also escaped observation.
but I think 'that Margaret did not refer to any of these assumptions. It 's too smart, too full of ideas, philosophical, historical, psychological, besides' scientific. Margaret was referring to a ghost and true and fair view of the full version first, and concise statement ': "If I saw a real ghost, even then I believe in ghosts. "This position is to undermine the basic principle of every empiricism: We believe only in what we see. The development required at this point ': not even believe what we see. and See' necessary but not sufficient . The existence and 'a proper subset of being perceived (preferably through the organ of sight) or otherwise said to exist means to be received but not vice versa (A implies B does not mean B implies A). The impact on relations between science and philosophy are remarkable. In light of this shift towards being more a 'severe skepticism, the delusions of the medieval schools, with related ontological proof of God, should be reassessed. At this point i termini della questione possono essere ribaltati. Da qui a "Vediamo anche quello che non esiste" il passo e' breve. Anche il senso della vista, prediletto dai filosofi, verrebbe equiparato ad altri sensi meno nobili. Crediamo o non crediamo a quello che sentiamo o, peggio ancora, a quello che fiutiamo. Se vediamo, sentiamo, fiutiamo oppure no, non implica esistenza o non esistenza. La quale a sua volta non implica percezione. Eravamo partiti cosi' bene, sembrava che l'universo stesse per aprirsi come un'enciclopedia, con tanto di indici analitici, ed eccoci di nuovo in balia degli sciamani siberiani.
Non crederei a un soldato ariano nero neanche se lo vedessi.