Scientists do know where to start, and we should listen to them. What we should teach are the theories that scientists are USING, and who better to tell us what those theories are than the scientists themselves. ===================
That remains your own philisophy. Unlike a religion, science should be questioned all the times as science is to confrim a truth while a religion is adocate a possible truth which inviting for a faith to believe. You can never confirm a religion as if a religion is confirmed it's no longer a religion.