This is exactly what we see in Jesus--a very practical concern for people's material well-being, coupled with the realization that ultimate progress can only be sustained through spiritual development.
Investments can only be sustained due to reputational concerns.
But that fear can only be sustained by distance, by keeping people at arm's length.
That in turn can only be sustained by a profitable business.
In his speech, he argued that the health service could only be sustained by exit.
Economic progress can only be sustained when the population is fed, educated, healthy and happy.
That idea can only be sustained without actual exposure to the legal system.
Many also suspected the racket could only be sustained through kickbacks to well-placed city officials.
And, however parochial his career, his miraculous consistency can only be sustained by global ambition.
British colonial power could only be sustained by the large-scale use of brutal force across four continents.
Chemical rockets, in contrast, fire much more powerful bursts, but they can only be sustained for minutes.
