Recording also available at iPadio using this link.
Today's saying is Dies diei discipulus. In English: "One day is the student of another."
This is a great little proverb about "lifelong learning" - or what you might call "day by day learning." There are a lot of different metaphors packed into this tiny saying. Here is how I understand it: Each day faces new challenges and has things to learn, but the day does not have to figure things out on its own; one day is the student of another day, of yesterday, and the day before that, and the day before that. So, let each day learn what it can, so that it can help to teach the days to come!
In terms of proverb style, you can see the wonderful effect of alliteration here. I'm not sure how to even try to render that in English.
For those of you who are fans of macrons, here is the Latin written with macrons:
Diēs diēī discipulus.