To other people, yes. But also to ourselves.
I remember this quote that said "when you speak, you're only repeating what you know, but when you listen, you might learn something new."•
I'd think that listening also applies to self, because sometimes when we speak, we know the words are coming out and technically, we know what we're saying but we're not always listening - even to ourselves.
I value quiet because in those moments, I can listen to myself, even without saying a word.
Do you see?