Good must to be "with fists".
The sentence structure is uncommon. A native speaker would not communicate the idea that way.
It would look something like this, per the common expression of the idea.
One needs to be bood with fists.
It is a popular misconception. It's errant presumption is that violence and fighting resolves all issues. Some of the greatest minds in all of human history have demonstrated the folly of such a belief.
Here is just one example:
"There are but two powers in the world, the sword and the mind. In the long run the sword is always beaten by the mind."-----Napoleon Bonaparte