It is what it is.
For centuries philosophers have struggled over it. Whether they believed that it was death, it was the loss of hope or even the 'it girl', the definition and purpose of it has been the rosetta stone and led to some mixture of insanity and bored college philosophy majors who smoke a bit too much pot and they get into arguments on Reddit. But a breakthrough was made in 1959 by physicists at Harvard when the great Doctor Henry Schnellmanberg proclaimed that it is what it is. At the time this esteemed professor was at a crossroads of his life, having just given up a professional surfing career to pursue his lifelong dream of merging the fields of quantum physics with existentialist philosophy. Everyone laughed at Schnellmanberg until he published his famous ten word scientific treatise entitled, "What is it and where did I leave it". The body of this paper said simply, "It is what it is, and that is it, really." Critics scoffed at the brevity of this paper, but soon it gained traction and of course now this concept is accepted as fact.