One tooth aches, and the whole night passes sleepless.
The tooth is small, the night long.

This is how Saadi describes humankind.
A single body.
When pain comes to one part,
the rest cannot be at ease.

We turn on the news.
We see a distant suffering.
Then we change the channel.

Two couplets later the poet gives his verdict:
whoever is indifferent to another's pain
does not deserve the name human.