everything can be useful if handled properly; use the right tools for the right job
Proverb meaning that even seemingly useless things or people can be put to good use if handled skillfully. Literally: 'Even a fool and scissors can be used depending on how you use them.'
Even a fool can be useful depending on how you use him; his simplicity sometimes comes in handy.
This old tool can still be used if you're creative—everything comes in handy when used correctly.