I am looking for a faithful translation of the (common in Australia) saying:
"If you throw enough shit against a wall, some of it has gotta stick."
It is in no way offensive, and means that if you try to attack a problem long enough and with enough varied methods, then eventually you must make some progress. A translation of this phrase would also need to have each of these properties to be faithful.
I find myself reaching for something similar at times when discussing my work. Is there an appropriate analogous saying in German, and if not, is there something close?
Please note there is a meta discussion relevant to this question here.