Crossword-Solution: SANE 4 letters, 389 clues 🏆 scrabble score: 4

They probably fancied that my sole object—and, indeed, the sole object for which a sane man could ever put himself into voluntary motion—was to get an appetite for dinner.

Implies that the check is to make sure the author was sane when it was written; e.g., if a piece of scientific software relied on a particular formula and was giving unexpected results, one might first look at the nesting of parentheses or the coding of the formula, as a `sanity check', before looking at the more complex I/O or data structure manipulation routines, much less the algorithm itself.

When this madness is in a mild form it is harmless and the man passes for sane; but when it develops powerfully and takes possession of the man, it can make him cheat, rob, and kill; and when he has got his fortune and lost it again it can land him in the asylum or the suicide’s coffin.

Now Tantor turned his attention once more to Tarzan for one of the symptoms of madness is a revulsion of affection—objects of sane love become the objects of insane hatred.

Such vapouring, combined with the extravagant plots of Monseigneur for the restoration of a state of things that had utterly exhausted itself, and worn out Heaven and earth as well as itself, was hard to be endured without some remonstrance by any sane man who knew the truth.