Quote Origin: Anyone Who Believes Exponential Growth Can Go On Forever in a Finite World Is Either a Madman or an Economist

Kenneth Boulding? Paul Ehrlich? David Attenborough? Mancur Olson? Wayne H. Davis? Jay W. Forrester? John S. Steinhart? Anonymous? Question for Quote Investigator: Population size, energy use, and gross domestic product (GDP) have grown exponentially for limited time periods within some nations; however, these trends are complex. Economies sometimes shrink; per-capita energy use sometimes declines; human …

Quote Origin: There Are Two Classes of People in the World; Those Who Divide People into Two Classes and Those Who Do Not

Neil deGrasse Tyson? Robert Benchley? Kenneth Boulding? Ross F. Papprill? Groucho Marx? Jeremy Bentham? Anonymous? Question for Quote Investigator: I enjoy humor based on clever self-referential statements, and a great example is the following: There are two kinds of people in the world: Those who divide everybody into two kinds of people, and those who …