A classic presentation and should be strongly recommended if not required watching, if for no other reason than the massive bullshit-calling which Greta carries out in this talk.
so you did or did not like her speech?
The supreme task is to organize and unite people so that their anger becomes a transforming force.
-- Dr. Martin Luther King, Jr.
I have learned through bitter experience the one supreme lesson: to conserve my anger. And as heat conserved is transmitted into energy, even so our anger controlled can be transformed into a power that can move the world.
-- Mohandas Gandhi
Those two quotes by themselves may be worth the whole talk!