Pourquoi ce joyeux silence ?

Missing, extremely new, or very obvious to obtain.

A reference to the Bacchanal Song by Russian poet and playwright Alexander Pushkin. The first four lines in the English translation by Irina Zheleznova is: Why, revelry's voice, are you still? Ring out, songs of Bacchus, our patron! Long life to you, maiden and matron, Ye fair ones who gave of your love with a will!