After the famous Da Vinci Code, Dan Brown's another brilliant novel Angels & Demons has recently incarnated into a captivating movie. This story captures the conflict between science and religion. In the story, the legend of the cult of scientists Illuminati is used by a young temporary overseer of the Catholic Church to fight what he thinks the enemy of religion---science. The story sincerely concludes that there is in fact no conflict between science and religion.
In my opinion, on the contrary, the conflict between science and religion is deeper than we think. The conflict is fundamental. Both science and religion aim to construct a worldview which corresponds to reality. Science and religion use two opposite methods to find out truth, truth essential to constructing a worldview which corresponds to reality. Science uses the method of verification by repeatable observable evidence. Science is the right method to find out truth because the scientific method lets us know that we are wrong when we are wrong. Some criticize that the answers provided by science are often found to be wrong and need refinement or replacement. I answer that this is precisely the strength of science: it tells us when we are wrong, and enables us go on finding. Religion in the narrow sense* uses the method of faith, which is just another word for guesswork by purely thinking. Faith (e.g., belief in God) is the wrong method to find out truth because, with the method of faith, we can never know when we are wrong. Even if faith arrives at the right answer (e.g., God really exists), it does it by luck. The right thing to say about God is "I don't know". Science knows its limit and lets us know when to say "I don't know". Faith never admits "I don't know".
*meaning traditional Western religions, Judeo-Christian-Islamic religions in particular, which are based on faith. This excludes liberal religions such as the non-creedal Unitarian Universalism, and the science-based Religious Naturalism and Religious Humanism, etc.
