"Though a skilled mathematician, Alfred Marshall used mathematics sparingly. He saw that excessive reliance on this in…"

"Prosperity ends in a crisis. The era of optimism dies in the crisis, but in dying it gives birth to an era of pessimi…"

"When a man sets out upon any course of inquiry, the object of his search may be either light or fruit — either knowle…"

"If it were not for the hope that a scientific study of men's social actions may lead, not necessarily directly or imm…"

"Wonder, Carlyle declared, is the beginning of philosophy. It is not wonder, but rather the social enthusiasm which re…"

"It is not pretended that, at the present stage of its development, economic science is able to provide an organon eve…"

"Even if the constants which economists wish to determine were less numerous, and the method of experiment more access…"

"The more I thought about it, the more obsessed I became with the idea of a swimming journey. I started to dream ever …"

"From water level, I observed the mating joined in flight like refuelling aircraft, and the random progress of the clo…"

"It is through trees that we see and hear the wind: woodland people can tell the species of a tree from the sound it m…"