“Anyone who believes in indefinite growth in anything physical, on a physically finite planet, is either mad or an economist.”
“Anyone who believes that exponential growth can go on forever in a finite world is either a madman or an economist.”
“Do not speak about anyone who is not physically present.”
“The library, to me, is the second most sacred physical space on the planet.”
“All science is either physics or stamp collecting.”
“All growth depends upon activity. There is no development physically or intellectually without effort, and effort means work.”