"An intellectual disinclined to be a leader, but who was pervasively influential all the same." This is how, some years ago, Federico Caffè summed up the figure of James Tobin, underlining the noteworthy contrast between the American economist's shy and soft character and his extraordinary, trailblazing influence on the development of economic research. This contrast has been greatly accentuated in recent times with the rise to prominence of the Tobin tax on the international political scene. With his good manners and sense of balance, Tobin has tended to treat the fame that this has brought him with self-deprecating irony. This gracious humility is of a different era to that of today¹s brimming narcissism, but it never went so far as to affect his civic passion and political commitment.