Convention (norm) States and in Germany that motorists drive on the right side of the road, whereas in New Zealand and the United Kingdom motorists drive on the left. The standardization of time is a human convention based on the solar cycle or calendar. The extent to which justice is conventional (as opposed to natural or objective) is historically an important debate among philosophers. The nature of conventions has raised long-lasting philosophical discussion. Quine, Davidson, and David Lewis published influential writings on the subject. Lewis's account of convention received an extended critique in Margaret Gilbert's "On Social Facts" (1989), where an alternative
Skyline Drive east side of the road. The drive continues to the south and passes Limberlost Parking on the east side and the west-facing Timber Hollow Overlook. The roadway then winds south past Bettys Rock. Farther to the south, Skyline Drive reaches Hawksbill Gap Parking, where a trail leads to Hawksbill Mountain, the highest peak in Shenandoah National Park at . The road continues along and comes to the east-facing Old Rag View Overlook, where it turns to the west and passes south of Upper Hawksbill Parking. The drive comes to the west-facing Spitler Knoll Overlook and curves south. The roadway bends