Two travelers,seeking respite from the searing heat of midday sun in summer,took shelter under a leafy tree.
They soon felt refreshed in the cool shade.
“what sort of tree is this ?does it produce edible fruits?”asked one of the men to the other.
“It is a plane tree”, said his companion.”it gives neither fruit,nor good timber.it is one of the most useless,even as you are enjoying my shade?”
Criticise no person as useless.every being has a reason for being useful.