To make oneself feared is the first step to making oneself known.
Or: it is impossible for a great thing to make itself known to a small thing. The small thing must become great first.
For this, it must want to become great.
Fear is a mighty effective means to inspire such a wish, but can do so only in the worthy; i.e. those who have it in them.
" The strong do what they can do and the weak accept what they have to accept. "