How should you respond? Should you take debating classes at the local junior college so that you can match their arguments point-by-point, quoting from Schweitzer, Gandhi and Mother Teresa?

One of the atheists’ most frequent complaints against belief in God is that faith in the Almighty is irrational.  More specifically, unbelievers claim that there’s no evidence for God’s existence. Thus, believers are intellectually irresponsible and even downright deluded.  This, in fact, has been the most popular charge leveled at believers ever since the Enlightenment of the 1700s.  Are we guilty?