Solzhenitsyn has called atheism the central pivot of Communism, and a hatred of God the principal driving force behind Marxist thought. (firstthings.com)
Our bloody nature, it can now be argued in the context of modern biology, is ingrained because group - versus - group competition was a principal driving force that made us what we are. (discovermagazine.com)
If, in fact, the climate HAS changed over the millions of years of Earth's history (it has), and if, in fact, we are not always able to explain why it has changed (we aren't), then I see no reason to accept the assumption that CO2 has to be the principal driving force. (realclimate.org)