1.   Conceptual difficulties are underpinned by organisational ones.

2.   The application of the rule in the case of financial loss presents no conceptual difficulty, although in practice the exercise may prove to be complicated.

3.   Japan has embraced Santa with a passion that sometimes raises conceptual difficulties in a land without chimneys.

4.   What intellectuals are prone to forget is that this distance poses not only conceptual difficulties but ethical ones as well.