Helen Keller: "It has often been noted that those who live, or have lived in the shadow of death bring a mellow sweetness to everything they do."
What are the different connotations between "live and have lived" in this sentence?
I still don't know how "have+lived in the shadow" can add the extra meaning of "nearly died and have survived the crisis" compared to "live in the shadow".
It seems the present perfect tense here not only implies time, but also degree, level, which is hard to understand. Thanks.