In this videoconference talk from 28 September 2018, Ajahn Anan discusses the wisdom of children.
An excerpt: "Those of us who are old should reflect that we should cultivate noble inner virtues, as well. We should see that those younger than us may be older in their hearts with the wealth of noble virtue. Let us contemplate like this, for us to let go of our ego and views within our heart. This is the path to meet with true happiness."
Note: One can read Dhamma talk transcripts at the Wat Marp Jan 'Reflections' page. These include questions and answers with Ajahn Anan, which are not in the audio files. See this talk's transcript here: https://watmarpjan.org/en/the-wisdom-of-children/