agnosticism

agnostismi, agnostisismi The view that absolute truth or ultimate certainty is unattainable, especially regarding knowledge not based on experience or perceivable phenomena.
The view that the existence of God or of all deity deities is unknown, unknowable, unproven, or unprovable.
doubt Doubt, uncertainty, or scepticism regarding the existence of a god or gods.
1956, January 31st: w:A. A. Milne|Alan Alexander Milne; quoted in:
1988: James B. Simpson, Simpson’s Contemporary Quotations, http://www.bartleby.com/63/93/4393.html № 4,393 (w:Houghton Mifflin|Houghton Mifflin, ISBN 0395430852)

The Old Testament is responsible for more atheism, agnosticism, disbelief — call it what you will — than any book ever written; it has emptied more churches than all the counterattractions of cinema, motor bicycle and golf course.