Abstract base classes (ABCs) represent an interesting paradox. […] It is instructive to think of ABCs as tools rather than as part of the product.

In June 1940 at night-time the air-raid siren went, my father was at the docs so my mother told my elder brother to go down the steps ready for me to be handed to him.

Why does she have a 'bulge' in her 'netherlands'?

The moral diversity which A, a technically good man, perceives between himself and B, a technically evil man, does not lead him to doubt the absoluteness of moral distinctions, does not lead him to dread these distinctions as tending to estrange man from his brother, and so to destroy human fellowship.