No matter how big or tall a wall is, there is always a way to climb over it.
No matter how tough a bully is, he/she will definitely have some characteristics that you can exploit, like humour.
No matter how difficult a question appears to be, there is always a method to solve it, sometimes even multiple.
No matter what allotrope of carbon, whether is it graphite or diamond, which is the hardest naturally-occuring substance, there are tools to break through them.
Akame ga Kill! Episode 13