This is a fantastic riff by William Lane Craig from a 1998 debate. It gets really good 1 minute and 20 seconds in.
The point: Science is critically important. But it is a fallacy to think that the only beliefs that are rational are those that can be demonstrated scientifically. For many beliefs that we all accept as rational are not demonstrable on scientific grounds. Therefore science cannot be the sole criteria for determining truth.
(HT: Between Two Worlds)