There’s nothing like the animal world to remind us of our own characteristics. Take the elephant, for example. Its one-inch-thick skin seems like it should protect the usually-gentle giant, making it invulnerable to pain.
In Hebrew, someone thick-skinned has עור של פיל – skin of an elephant.
In context:
מטיחים בו ביקורת יומם ולילה, אבל זה לא מזיז לו – יש לו עור של פיל.
They criticize him day and night, but it doesn’t bother him – he has the skin of an elephant.
Note that skin is עור with an ע, not אור with an א. That means light.
