"One is never certain of the contents of treasure chest when not in possession of the key. "

"One is never sure of a treasure of which one has not only the key. Jean-Napoléon Vernier, Fables, Thoughts and Poems, (1865) The creation of a service like Classo would be unthinkable without the contribution of teachers. I would like to take this opportunity to thank all those who, for the past eight months, have Read more about It's all well digital, except that ...[...]

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