If the shoe fits wear it
si lɐ sɐβatɐ ɛt ʋa pozɐtɛlɐ
In Catalan Si la sabata et va, posa-te-la.
This idiom is used in Catalan to mean that if something applies to you, you should acknowledge it.
Example
"Va ser acusat de mentir, i va dir: "Si la sabata et va, posa-te-la." (He was accused of lying, and he said: "If the shoe fits, wear it.")"