The young, for all the talk of a lost generation, have buoyancy and self-belief, while the old have their gripes and prejudices to sustain them.
Naturally, microorganisms have their metabolic pathway optimized to sustain maximal growth and outcome competitors in the environment.
Several former N.H.L. stars have had their careers shortened after sustaining multiple concussions.
In recent seasons Arsenal have had their encouraging moments, but sustaining them into the sharp end of the season has been the tougher trick to pull off.
Even in their worst moments, Brazilians had their prowess in soccer to sustain them, as celebrated in four World Cups.
On the surface, it appears that the Yankees have sustained their winning ways in 2010, their recent slump notwithstanding, simply by carrying over the momentum from last year's World Series championship squad.
Those companies with innovation leaders at their helm, like Google, Apple, Amazon, Gilead, Disney, 3M, Tesla and my former company Medtronic, have sustained their growth and performed exceptionally well.
Unexpectedly, in power, Conservatives have sustained their interest.
Bochy and Leyland have sustained their success, off and on, over time.
One year on from our first pilot, all of our participants have sustained their tenancies or had a positive move.
