Amidst the welter of divergent usages of terms, it is agreeable to discover one fixed point. So far as I know, everyone is agreed that saving means the excess of income over expenditure on consumption.

在术语的不同用法的混乱中，发现一个固定点是令人愉快的。据我所知，每个人都同意储蓄意味着收入超过消费支出。