Kalam L’Apeiron :
The apeiron (in ancient Greek means « unlimited ») is a philosophical concept first introduced by Anaximander in the 6th century BC. to designate the original principle.
Anaximander describes the apeiron as the sole cause of such organized development of our Universe. It is by affirming the infinity of the latter that he describes the apeiron as being an element invisible to the human eye determining everything in which our world consists and this, since always and until infinity.
It would also be this force that would have created humans, the Earth, the galaxies and the stars.
It is, in short, the principle of all that is.
more information here