Question

Is this paragraph’s main idea stated or implied?

Answer 1

Yes its starts off by saying that every Law starts with an idea and lists examples.

Answer 2

The paragraph's main idea is stated in the first sentence: 

Every law starts with an idea.

After this statement, the author writes supporting statements for the main idea. Then the author concludes by saying that these ideas must be able to travel a common path in order to turn into a law. 

hope this helps ;)