From my childhood, this kural is nailed in my head. But, I don't know the exact meaning of it for long time.
When there was a fight, my friend asked the non-Tamil person to explain this kural in order to teach him to use a common language in a forum.
I immediately searched for it in google and got a translated version of Thirukkural book (collected from various websites by Rajamani Thiruvengadam) to learn the meaning:
"A" leads letters; the Ancient Lord leads and lords all the living things in the entire world".
After then, I am using this book to explain the meaning of the Thirukkurals originally written in Thamizh/Tamil (my mother tongue/என் தாய் மொழி) to others.
Many finest works in the Tamil Literature should be re-written in the form wherein the new generation understands the correct meaning of them. It helps us to know the ancient Arts and philosophy.
Another thing that can be done is publishing the works in Social Media and popular places in which people notice them, such as, posters in Cricket Match, Cinema Malls.