I admit that it was my first response, and a belief that was a long time in going. But I no longer feel that it is a limitation, I see it as a strength of a new medium.

The currency's strength comes at a time when Germany's Labour costs are beginning to creep up after a long decline, notes Michael Heise, chief economist of the Allianz financial group.

Mental - mental endurance is the ability to focus for long periods of time while mental strength is the ability to focus very intensely.