Quotes from book
The Necessity of Atheism

"The Necessity of Atheism" is an essay on atheism by the English poet Percy Bysshe Shelley, printed in 1811 by Charles and William Phillips in Worthing while Shelley was a student at University College, Oxford.

“We must prove design before we can infer a designer.”
http://www.gutenberg.org/dirs/etext03/shly310.txt
Alternate: Design must be proved before a designer can be inferred. http://www.ratbags.com/rsoles/comment/shelleydeism.htm
The Necessity of Atheism (1811)