Based on the usage of the words bequeath and posterity in this excerpt from thomas paine's common sense, complete the sentences.

the authority of great britain over this continent, is a form of government, which sooner or later must have an end: and a serious mind can draw no true pleasure by looking forward, under the painful and positive conviction that what he calls "the present constitution" is merely temporary. as parents, we can have no joy, knowing that this government is not sufficiently lasting to ensure any thing which we may bequeath to posterity