使用COBOL会削弱思维；因此，教授它应被视为一种犯罪行为。

The law, in its majestic equality, forbids the rich as well as the poor to sleep under bridges, to beg in the streets, and to steal bread.

To write is to betray, to betray is to survive.

The future of the coal industry lies in cleanliness, low-carbon, and intelligence.