Who said "I'm speaking for those who have no voice."?

This quote is attributed to Greta Thunberg.

I'm speaking for those who have no voice. - Greta Thunberg

"I'm speaking for those who have no voice."

Greta Thunberg Justice

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."

"Justice must always prevail."

"You think I'm just some animal?"

"Fighting for what's right never gets easier."

"Justice is worth fighting for."