勇许志勇，志之所以敢也

One names a man 'brave' because of what he does dare.

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天下有中许志勇，敢直其身

When the world is stable (at center), be daring and hold yourself erect.

参考

The brave volunteers to also, dare to keep in the world have their body

Yong Chi dare also, the world has dared to direct the body in