Is it more correct to say that a dog wags its tail, or that the tail wags the dog?
Common thinking is that the larger mass influences or moves the smaller one. But if Newton is right, then it is also true that the tail is wagging the dog, because for each and every action, there is an equal and opposite reaction.
In conclusion, a dilemma arises: should we indeed think of dogs as wagging their tails, as we have it in ordinary parlance? I leave you with a quote:
"The point of philosophy is to start with something so simple as not to seem worth stating, and to end with something so paradoxical that no one will believe it." - Bertrand Russell