Modest is even the thief in presence of sleep: he always stealeth softly through the night.
 Friedrich Nietzsche, Thus Spoke Zarathustra (1891). copy citation

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Author Friedrich Nietzsche
Source Thus Spoke Zarathustra
Topic presence sleep
Date 1891
Language English
Reference
Note Translated By Thomas Common
Weblink http://www.gutenberg.org/files/1998/1998-h/1998-h.htm

Context

“To him went Zarathustra, and sat among the youths before his chair. And thus spake the wise man: Respect and modesty in presence of sleep! That is the first thing! And to go out of the way of all who sleep badly and keep awake at night! Modest is even the thief in presence of sleep: he always stealeth softly through the night. Immodest, however, is the night-watchman; immodestly he carrieth his horn. No small art is it to sleep: it is necessary for that purpose to keep awake all day. Ten times a day must thou overcome thyself:” source