ten o'clock
It is affirmation remember , not negation , that makes the world go round ! The ` intellectuals ' forget that , and they are sterile accordingly . '' Signor Mannetti 's wits were something too nimble for his hearers . He talked and talked -- about everything but the matter in their minds -- until half-past ten o'clock , when his man came after him . Thereupon he rose , like an obedient child , and wished them `` Good-night . '' `` Stephano is my guardian angel , '' he said -- `` a being of painful punctuality . But he adds years to my life .