Answer:
to evoke in colonists the need for urgency in their quest for independence.
Step-by-step explanation:
All of these phrases are probably uttered by Paine in an attempt to instill a sense of urgency in the reader. With these phrases, Paine conveys the idea of life being short, and the affairs of humans being over before we know it. He wants the colonists to think of how important it is to act soon, before the chance for change is over.