The subjects of every state ought to contribute towards the support of
the government, as nearly as possible, in proportion to their respective abilities…
The Wealth Of Nations, Book V Chapter II Pt II, v. ii, p. 825, para. 3.
In this quote, Smith is saying that everyone should work together to help
achieve a certain goal that they can benefit from in the end. It doesn’t have
to be the government. It can be something else that’s simple. An example
of this quote is when a group of people come together to make food. They
all work hard and benefit from their hard work.