Final answer:
There is no direct quote about Roland discussing authority at a RAMC conference within the provided references. Further context would be needed to provide an accurate answer regarding Roland's comments on authority.
Step-by-step explanation:
The passage in question does not explicitly describe Roland speaking about authority at a RAMC conference. Instead, the reference materials provided contain separate statements regarding authority from different sources. The first is from Raz's book on law and morality, suggesting that possession of a letter confers power. The second, from a conversation about Congress practices, implies that routine possession or employment can confer authority. Lastly, Macaulay-Lewis discusses the taking of a symbol of authority, highlighting its visible power. The student may be referring to a fictional account or has conflated several sources. Therefore, we cannot provide a direct quote from Roland about the RAMC conference's authority without more context or the correct source.