"There may be fairies at the bottom of the garden. There is no evidence for it, but you can't prove that there aren't any, so shouldn't we be agnostic with respect to fairies?"

This quote by Richard Dawkins is a metaphor for the concept of agnosticism. He is recommending that, simply as there is no proof for the presence of fairies, there is also no evidence for the existence of a greater power or deity. For that reason, he suggests that we need to be agnostic with regard to the existence of a higher power or deity, just as we are agnostic with regard to the presence of fairies. This quote is a pointer that we need to not be too quick to make assumptions about the presence of something with no proof to back it up. Rather, we should stay unbiased and accept that we might never ever know the answer.