I happened across a quote today, taken from Bertrand Russell’s 1927 lecture “Why I am not a Christian“. The statement was made as part of his discounting the First Cause argument:
“If everything must have a cause, then God must have a cause. If there can be anything without a cause, it may just as well be the world as God, so that there cannot be any validity in that argument.”
It is this reasoning which means that I cannot say with certainty that there is, or isn’t, a God/supreme cosmic being (and why there very well might be an invisible pixie sitting next to you right now Nige).