The quote reflects the remarkable ability of a character in "Les Misérables" to communicate profound truths using simple, everyday language. This showcases the character's talent for transcending social barriers, making deep connections with people from all walks of life. By speaking in a way that resonates with the common person, he is able to express grand ideas that might usually be confined to the elite.
This ability highlights the power of language and communication in bridging differences. It suggests that true understanding and connection come not from lofty speech, but from the ability to relate to others' experiences and emotions. The character's mastery of language allows him to touch the hearts of many, illustrating that greatness can be found in the most humble expressions.