Final answer:
The speaker and listener are not explicitly mentioned in the quote, but the quote emphasizes the importance of effectively using facts.
Step-by-step explanation:
The speaker and listener in the given quote are not explicitly mentioned. However, the quote emphasizes the importance of not just having facts but also how they are utilized. This suggests that the speaker is advocating for the effective use of facts, while the listener is being encouraged to consider the significance of using facts in their own approach.