"Today's world calls for new attitudes, new ways of life - more responsible, aware, and egalitarian. We need more communion and more dialogue. By affecting us regardless of political, territorial, racial, ethnic and religious boundaries, climate change unites the world through shared suffering. In order to fight it, we need to keep united and to transform this union into an action that is collective, global, and shared, involving all strata of society all around the world."
January 1, 1970
https://en.wikiquote.org/wiki/Jo%C3%A3o_Mamede_Filho