This quote is a critique of the concept of credit, or more broadly, the financial system. It suggests that credit, while it can be beneficial as a source of funds, also has the potential to facilitate corruption. The term "lighter wings to fly" implies that credit, or money in general, can make it easier for corruption to spread and flourish.

The phrase "blest paper-credit" is somewhat ironic. It suggests that while credit is often seen as a blessing or a lifesaver, especially in times of financial need, it also has a darker side. The "last and best supply" indicates that credit is often seen as the ultimate solution to financial problems, but it also suggests that it’s the last resort, used when all other options have been exhausted.

In today’s world, this quote can be applied to the ongoing debates about the role of financial institutions and the need for stricter regulations to prevent financial fraud and corruption. It can also be used to discuss the ethical implications of economic policies and practices.

In terms of personal development, this quote could serve as a warning about the dangers of relying too heavily on credit or getting into debt. It could be interpreted as advice to be cautious about financial decisions and to be aware of the potential risks and consequences. It also highlights the importance of financial literacy and the need to understand the financial system and how it works.