“Avoiding climate breakdown will require cathedral thinking. We must lay the foundation while we may not know exactly how to build the ceiling.”
“The Eloquence of Greta Thunberg”, Thomas Gaulkin, https://thebulletin.org/2019/04/greta-thunberg-climate-change-eloquence/ Bulletin of the Atomic Scientists (25 April 2019)
2019, "You did not act in time" (April 2019)
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Swedish climate change activist 2003Related quotes

Address at a Citizenship Ceremony, Winnipeg Manitoba, May 20, 1955
Speaking Of Canada - (1959)

The Earth is in a death spiral. It will take radical action to save us, 2018

Source: "Evolutionary Socialism" (1899) https://www.marxists.org/reference/archive/bernstein/works/1899/evsoc/index.htm, Chapter III, The Tasks and Possibilities of Social Democracy

“Be careful: in the last analysis, reality may be exactly what we think it is.”
What Is Reality?
Context: Ideas, unlike solid structures, do not perish. They remain immortal, immaterial and everywhere, like all Divine things. Ideas are a golden, savage landscape that we wander unaware, without a map. Be careful: in the last analysis, reality may be exactly what we think it is.

2000s, God Bless America (2008), Slavery and the American Cause

Opening address, Pacific Islands Political Studies Association (PIPSA), 24 November 2005.

“We build upon the sand, and the older we become, the more unstable this foundation becomes.”