In fact, this is what South African President nelson mandela said in his inaugural speech at 1994.

The full text is

Our deepest fear is not our incompetence;

Our deepest fear is that we are more capable than we think.

This is our lamp, not the darkness that scares us.

We ask ourselves, who is the most dazzling, qualified and amazing?

In fact, aren't you?

You only play a small role in this world,

If you shrink back when you have no enlightenment, others will not feel uneasy around you.

When we illuminate others, we unconsciously allow others to do the same thing.

And when we are liberated from self-fear, our performance will also liberate others! "

Personally, I think the fear here should be understood as shock and surprise!

Ha ha ~