You say: Science is a search for the ultimate Truth.
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What if the ultimate truth is God? Many scientist think so. Do you tell them that they nothing of science?
HA! That’s great!! Ya know what - if Science leads us to that conclusion with empirical, provable evidence, I’ll concede the point! Unfortunately for your proposition, there is no current scientific proof that points to the existence of God. The scientists you refer to are HUMAN, and as such, have a very human fear of death. Many delude themselves with religion in order to give meaning to their lives. Also, don’t forget how impressionable children are; their parents probably introduced them to religion and their love and respect for their parents causes them to continue in that behavior. Furthermore, I believe that a little bit of our childhood psychology remains with us when we become adults. That feeling for wanting someone to watch over us, protect us, guide us and love us unconditionally never completely goes away. It is the desire for all these things that causes otherwise rational adults to believe in religion. If that makes them feel better, no problem, as long as it doesn’t ruin their work as scientists. I cannot lie to myself, so that is why I do not believe.