luminary, luminaria

Luminary or luminary means a famous or distinguished person, a leading light--
If we could get even one luminary to speak at our event, we would attract a larger crowd.
He's quite well-known, something of a luminary to the tech workers.

Luminary also means a celestial body that gives light, such as the sun or the moon--
Venus is the brightest luminary in the night sky, other than the moon.

Luminaria or luminaria means lights or candles set into sand in a bag, and placed outside in honor of a holiday--
There will be luminaria all over the neighborhood tonight, as a Christmas display.
Make sure to save the paper bags for luminaria.

Now that you know that, you can say--
"Each luminaria is dedicated to a different philosophical luminary."

Note--"luminaries" is the plural ( more than one ) of "luminary", meaning a famous or distinguished person--
Among the luminaries were a famous artist and the mayor of the city.