|A Google-generated definition of purposeless, defined as something done or made without discernible point; having no aim or plan.|
The following are related quotes:
“Today we know that the cosmos is simply a flux of purposeless rearrangement amidst which man is a wholly negligible incident or accident.”— Howard Lovecraft (1936), “Religion and Ethics”, letter to Natalie Wooley, May 2 
“Man is the result of a purposeless and materialistic process that did not have him in mind. He was not planned. He is a state of matter, a form of life, a sort of animal, and a species of the order primates, akin nearly or remotely to all of life and indeed to all that is material.”— George Simpson (1967), The Meaning of Evolution 
● Purposeless universe hypothesis
1. (a) Simpson, George G. (1967). The Meaning of Evolution: a Study of the History of Life and of its Significance for Man (purposeless, 3+ pgs; quote, pg. 345). Harvard University Press.
(b) Strobel, Lee. (2004). The Case for a Creator: a Journalist Investigates Scientific Evidence that Points Toward God (pg. 26). Zondervan, 2009.
(c) George Gaylord Smith – Wikipedia.
2. Lovecraft, Howard P. (2010). Against Religion: the Atheist Writings of H.P. Lovecraft (editor: S.T. Joshi; foreword: Christopher Hitchens) (abs) (Amz) (purposeless, pg. 72-73, 93, 114). Sporting Gentlemen.