If you think you can do it, you can.
Things do not happen. Things are made to happen.
Either you run the day or the day runs you.
Begin to be now what you will be hereafter.
It's always too early to quit.
The dog that trots about finds a bone.
After a storm comes a calm.
Never complain and never explain.
Expect problems and eat them for breakfast.
If you can dream it, you can do it.
The skills of the British intelligence community are a great national asset.