Natural science can be broken into two main branches: life science (or biological science) and physical science. Physical science is further broken down into branches, including physics, astronomy, chemistry, and Earth science. All of these branches of natural science are divided into many further specialized branches (also known as fields), and each of these is known as a natural science.
When in Rome, do as the Romans do definition When visiting a foreign land, follow the customs of those who live in it. It can also mean that when you are in an unfamiliar situation, you should follow the lead of those who know the ropes.
There was also precedent in Roman history  Aeneas and Romulus, who had helped found Rome, were already worshipped as gods. Aside from their many gods, Romans were deeply superstitious, so when Augustus was handed a huge piece of luck, he took full advantage of it. Early in his reign, Halleys Comet passed over Rome.