| First, general relativity holds and gravity must act upon everything as an attractive force. |
| It is one thing to assert one's good intentions, but another entirely to act upon them. |
| There are windows of tourism opportunity opening regularly but no-one available to spot them and act upon them before they slam shut. |
| A technician can no longer act upon them because a capacitor in an old appliance that could be as wide as a pen is now as small as a pinhead. |
| After being made redundant, Daphne decided to act upon her dream to create a boarding kennels and cattery at her home. |
| It allows us to entertain the idea of rebellion, diffusing that feeling without having to act upon it. |
