Who said "I believe in the power of collective action."?

This quote is attributed to Greta Thunberg.

I believe in the power of collective action. - Greta Thunberg

"I believe in the power of collective action."

Greta Thunberg Power

Climate Activist, Student Swedish Born 2003 (age 23)

"Our house is on fire. I want you to panic."

"You are not mature enough to tell it like it is. Even that burden you leave to us children."

"No one is too small to make a difference."

"A lot of people want to just continue not doing anything."

"Power without control is just destruction."

"Power is not about control, it's about influence"

"The world doesn't need me to be the hero. It just needs me to be dangerous."

"The claws come out when I need them to."