Final answer:
The rarity of people with new ideas is highlighted in the provided text, but the speaker and listeners are not explicitly mentioned.
Step-by-step explanation:
The speaker and listeners referred to in the question are not explicitly mentioned in the provided text. This question seems to be asking about the rarity of people with new ideas. The speaker suggests that individuals with the capacity to say something new are extremely few in number. It is implied that the listeners would be those who are open to hearing and accepting new ideas. However, without more context, we cannot determine the specific identities of the speaker and listeners.