It was too expensive, to say nothing of the time it wasted.

Sun clocks worked, of course, only on clear days; water clocks misbehaved when the temperature fell toward freezing, to say nothing of long-run drift as the result of sedimentation and clogging.

Both the Romanow Commission and the Kirby committee on health care—to say nothing of reports from other experts—recommended the creation of a national drug agency.