Another story of Galileo is also a very typical one to explain the importance of challenging the authority. It is known to us all that Aristotle is a great philosopher in ancient Greece and is widely regarded as the most erudite mind so far. His theories, as a result, are firmly believed by almost everyone in the Middle Age.
However, Galileo, a talented physicist at that time, found one of Aristotles theories that the velocities of two falling weights are proportional to their weights incorrect through his thousands of experiments.
