1.   Cardiff was, of course, built on mud flats, and nature takes a long time to change.

2.   I meant that, in the case of any other industry, we probably would have let nature take its course.

3.   I think we should let nature take its course.

4.   Just relax and let nature take its course.

5.   Relax and let nature take its course.

6.   Should I just let nature take its course or stop it now?

7.   Stay calm and let nature take its course.

8.   The best cure for a cold is to let nature take its course.

9.   On the other hand, you hate to be the one to decide to let nature take its course.

10.   And in some sense, nature already has taken over.