Translate the following English sentence to French:
"Humanitarian law is that yardstick by which we can show whether that moral obligation is just some kind of rhetorical stimulus for us or something that leads to deeds and action."
Le droit humanitaire est la pierre de touche qui nous servira à prouver si cet impératif moral ne nous inspire que de belles phrases ou s' il débouche sur des actes et de l' action.