Think twice, though, about specializing in fields that require a close alternation of experiment and quantitative analysis.

WSJ: Great Scientists Don't Need Math

The variety of landscapes and water features, the alternation of the seemingly wild with the obviously cultivated, all call to mind Olmsted's Central Park.

WSJ: Biltmore Estate | King of the Castles | Masterpiece by Julia M. Klein

One of the flourishes of the British temperament that are most enchanting to Americans is the alternation, among the brightest spirits, of seriousness and wit.

NEWYORKER: Free Spirits

That has helped to break the cycle of political violence which dogged the region, produced a healthy alternation of power, and directed attention to deep-rooted social problems.

ECONOMIST: A big step backward for a still-uncertain democracy

Even though Chile has advanced immensely in terms of democracy, economy and the rule of law, it is vital for a full functioning democracy that alternation of power takes place.

CENTERFORSECURITYPOLICY: High stakes in Chile

He helped to organise a democratic alternation of leadership, and became eventually a mover, together with Prof Francis Gichuru, for the establishment of the African Cultural Regeneration Institute (ACRI) in 2003.

UNESCO: Patrimoine culturel immat��riel

There, he struggles to avoid recapture and to survive in snowed-under, sparsely inhabited woodlands, and Skolimowski films his savage travails with an exciting yet chilling alternation between the grandeur of landscapes and the grit of intimate experience.

NEWYORKER: Essential Killing