I recommend being in the office at least every weekday. [...] 60 hours a week
is the sweet spot of productivity.
--- Sergey Brin, Google, 2025. (src)
This curious world which we inhabit is more wonderful than it is convenient;
more beautiful than it is useful; it is more to be admired and enjoyed than
used. The order of things should be somewhat reversed: the seventh should be
man’s day of toil, wherein to earn his living by the sweat of his brow; and the
other six his Sabbath of the affections and the soul.
--- Henry Thoreau, Harvard Commencement Oration, 1837.
Brin's "sweet spot of productivity" is a sure way to life of "quiet desperation."