you would be foolish to accept what people believed for “thousands of years” in many domains of natural science. When it comes to the ancients or the moderns in science always listen to the moderns. They are not always right, but overall they are surely more right, and less prone to miss the mark. In fact, you may have to be careful about paying too much attention to science which is a generation old, so fast does the “state of the art” in terms of knowledge shift.

Razib Khan