My nurse (I have a nurse) refuses to admit the mountain.

She insists upon referring to this dizzy height as "just above sea-level" and declares that the precipitous ascent thereto is "a slight grade." Otherwise she is quite sane.
But sanity is more than I feel justified in claiming for anyone else in this household.

There is Li Ho, for instance.

Well, I'm not certain about Li Ho.

He may be Chinese-sane.