It’s easy to make a cocktail more sweet or sour or dilute; it’s harder to make it unsweet or unsour and undilute.

Even Mr. Wilson's speech, excellent as it was, could only condemn the Government's narrow-minded approach for the reasons we have outlined, ….

On the other hand, blank spaces should not be used for unary operators such as unary minus (−), address of (&), indirection (*), member access (.), increment (++), and decrement (−−).

[…] or imprisoned persons, supposed ghosts, for long periods or until almost the end of the story, with occasional references to them, unsatisfies the reader, unless he knows beforehand that all will be explained normally.