I believe this also. But, we have to balance everything. As they say, "everything in moderation."

Then some add a caveat..."everything in moderation, including moderation."

And that is how I believe.

But, I think our society has been sold on being "gung ho."

And it is, I think, too much of a kind of fall back position.

I do not believe that being gung ho is the solution to all problems.

And I also think that being gung ho tends to overshadow other kinds of experiences in life.

The analogy is that, you can run through the Louvre and experience 1000 paintings in just 2 minutes. Or, you can sit with one painting and actually delve into the depth of what is there.

I was sold on being gung ho.

I did a range of extreme things.

Generally, I paid a price, often a big price for them.

I hitchhiked across the country, alone. Had many amazing and wonderful experiences, but two different folks tried to murder me.

I hiked in a bunch of the national parks, but did not do my research and prep. Encounter rattlesnakes and grizzlies. Miracle I am still alive. I think the grizzlies and the snakes give a pass to the excessively stupid.

On and on and on.

Until in my early 40s I became permanently disabled.

Yet fear is an important feeling isn't it? Have no fear but fear itself( E. Roosevelt). I agree however, with your quote. When we begin to feel that fight or flight response, it is important to pay attention to it and decide which option to take, as opposed to simply being fearful, if that makes sense.