This is the 2016th most frequent French word.
ceux
"Ceux" means "those" (used to refer to people or things).
In this sentence, 'ceux' is used as a pronoun meaning 'those', representing people who want to learn.
Ceux qui veulent apprendre ont une grande opportunité.
Those who want to learn have a great opportunity.
Here, 'ceux' refers to specific objects or persons that the speaker chose, functioning as a pronoun.
Je préfère ceux que j'ai choisis moi-même.
I prefer those that I chose myself.
In this usage, 'ceux' describes people who made contributions, acting as a pronoun to specify the subject group.