The Bible says all men are without excuse. Even those who are given no good reason to believe and many persuasive reasons to disbelieve have no excus… - William Lane Craig

Therefore, when a person refuses to come to Christ it is never just because of lack of evidence or because of intellectual difficulties: at root, he refuses to come because he willingly ignores and rejects the drawing of God's Spirit on his heart. No one in the final analysis really fails to become a Christian because of lack of arguments; he fails to become a Christian because he loves darkness rather than light and wants nothing to do with God.

Very often atheists themselves admit that they have no evidence of God's absence, but they try to put a different spin on it. They'll tell you, “No one can prove a universal negative” (like “There is no God”). They think this somehow excuses them from needing evidence against God's existence. But not only is it false that you can't prove a universal negative (all you have to do is show something is self-contradictory), but more importantly, this claim is really an admission that it's impossible to prove atheism! Atheism involves a universal negative, you can't prove a universal negative, therefore, atheism is unprovable. It turns out that it is the atheist who is believing a view for which there is and can be no evidence.

The atheist believes the (Schlitz) beer commercial, which tells us to “Go for the gusto since we only go around once!” Now, I submit that’s a patently false view of ethics. If there is no God then Mr. Zindler is absolutely right—just live for total self-interest. There is no objective right and wrong. Nobody holds you accountable so just go for all the gusto you can get. Now, of course, you have to be rather careful about this because if you just pursue your unbridled lusts you may hurt other people and they, in turn, may try to get you back and diminish your gusto.