| Whilst Paul is obviously a successful businessman, making money has not been his driving force or ambition. |
| The heath is a driving force in itself, a force that goes by its own free will and nature. |
| He controlled the game at that stage and he was the driving force as Kerry pushed forward for a succession of great scores. |
| After all, obstacles are not insurmountable when passion is the driving force. |
| This last example suggests that the driving force for women's full integration into the armed forces has been manpower shortage. |
| The grandmother has been the driving force behind the project to transform the crumbling control tower into a new visitor attraction. |
