Most of his material is second-hand and the accumulation of detail, especially contemporary newspaper accounts, is sometimes exhausting.

ECONOMIST: Ronald Reagan

Amid all of this messy thinking we miss the simple truth behind our material wealth: It has been achieved through the accumulation, by us and inherited from our forefathers, of a stock of highly configured and embedded tools that make human effort more effective and things possible that never were before.

FORBES: The Role of Capital Has Politicians Confused

The third mistake was that, because the workers were allowed to bypass the time-consuming mixing process in the tower, with its automatic controls for preventing such things happening, they were free to dump their material into a vessel that was not designed to prevent the accumulation of a critical mass sufficient to support a chain reaction.

ECONOMIST: All over in a flash