The critical attitude
Strikes many people as unfruitful
That is because they find the state
Impervious to their criticism
But what in this case is an unfruitful attitude
Is merely a feeble attitude. Give criticism arms
And states can be demolished by it.

Canalising a river
Grafting a fruit tree
Educating a person
Transforming a state
These are instances of fruitful criticism
And at the same time instances of art.

Bertolt Brecht