Sustainability is the key concept here; attempting to maximise growth in the short run is counter-productive, as is exclusive concentration on trying to smooth the business cycle, or the attempt to get the economy on to a trend growth path higher than its potential.
I have no wish to argue with any of these propositions, and indeed they are all encompassed within our inflation-targeting approach to monetary policy. They are admirable statements of the aims of monetary policy, but they are not descriptions of what good monetary policy in a healthy economy would look like, i.e.