" Why is there something rather than nothing? Ultimately, this question may be no more significant or profound than asking why some flowers are red and some are blue. ‘Something’ may always come from nothing. It may be required, independent of the underlying nature of reality. Or perhaps ‘something’ may not be very special or even very common in the multiverse. Either way, what is really useful is not pondering this question, but rather participating in the exciting voyage of discovery that may reveal specifically how the universe in which we lived evolved and is evolving and the processes that ultimately operationally govern our existence. That is why we have science. We may supplement this understanding with reflection and call that philosophy. But only via continuing to probe every nook and cranny of the universe that is accessible to us will we truly build a useful appreciation of our own place in the universe. "

― Lawrence M. Krauss , A Universe from Nothing: Why There Is Something Rather Than Nothing