Terms for subject Cliche / convention containing argument

English	Russian
just for the sake of argument	если уж на то пошло ("Not sure what can be done to stop the Pacific Ocean." "If you can fill in a sandbar with material you dredged up from False Creek to pull it out of the ocean in the first place, you can do it again to make it a little taller so the ocean doesn't take it back." "Just for the sake of argument, they could build a lock at the mouth of False Creek since it's not that wide in the grand scheme of things." "It's impractical and stupid. The plan will be to build an extended, higher seawall that funds itself by reclaiming a strip of new waterfront land that can be sold to fund the construction." (Reddit) ART Vancouver)
make a good argument	убедительно доказывать (To complicate the concept further, Spaxman makes a good argument that natural formations can be iconic. He specifies The Lions on the North Shore mountains. The Lions are made up of two distinct mountain peaks, which many long-time residents talk about with reverence. vancouversun.com ART Vancouver)