This reminds me of a nice poem by Sa'di:
The sons of Adam are limbs of each other, Having been created of one essence.
When the calamity of time affects one limb The other limbs cannot remain at rest.
If you have no sympathy for the troubles of others
You are unworthy to be called by the name of a human
One last thing: Never put the kettle on a fire that is bigger than the size of the kettle!