While those who sacrifice to save now can themselves enjoy higher consumption in the future, some of the resulting increase in the nation's capital stock and the related income will also benefit future generations.
Sacrificing now can result in a much better outcome in the future, and might allow persons to buy a new home with little strain on the bank account. 
mnli hypothesis: Sacrificing now can result in a much better outcome in the future, and might allow persons to buy a new home with little strain on the bank account.  premise: While those who sacrifice to save now can themselves enjoy higher consumption in the future, some of the resulting increase in the nation's capital stock and the related income will also benefit future generations.