Therefore, we shall compete against time and do not let it slip by unproductively.

因此，必须与时日竞争，切莫使时日空过。

Business people, for instance, should not leave money sitting unproductively in Banks.

商界人士，例如，不应把钱坐在非生产性银行。

Nevertheless, society has been richer by the labour while the coat lasted, that is, until society, through one of its unproductive members, chose to consume the produce of the labour unproductively.

不过，在上衣未被穿坏以前，社会财富却因这个裁缝的劳动而有所增加，也就是说，在该劳动产品被某一非生产性社会成员拿去消费以前财富有所增加。