With longer life spans and better health and education, many feel that giving birth to a baby a mere couple of decades after they themselves were in the cradle is a little premature.
From the outset, MoMA followed the Bauhaus's strict prohibition against design that even hinted at the decorative, a prejudice that skewed the pioneering museum's view of Modernism for decades.
Over the last couple of decades, the personalization of the office changed dramatically... there's an informality people often take for the absence of rules - which it's not.
Weapons of mass destruction are the greatest threat to life on earth. Biological weapons are often called the poor man's atomic bomb. Saddam Hussein is the ruler who has for decades been making the most determined and diabolical illegal effort to acquire them.
If age someday grounds my feet and wilts my port de bras, what vestige of the old life will be left? The signs that I was a dancer will gradually fade like stripes on a beach towel. Even my knowledge of the art form, reaped in sweat over decades, could be lost over time.
Email will probably be around for many decades to come. It's hard to say what will happen 20 years from now, but email has been around for decades, and it will likely be around for decades more.
Our robots are signing up for online learning. After decades of attempts to program robots to perform complex tasks like flying helicopters or surgical suturing, the new approach is based on observing and recording the motions of human experts as they perform these feats.
For decades, Saddam and his Sunni minority had imposed their will on Iraq, carrying on a 14-century tradition of Sunnis controlling Mesopotamia despite a Shiite majority.
Obama offers himself as a catalyst by which disenchanted Americans can overcome two decades of vicious partisanship, energize our democracy, and restore faith in government.
Many people we consider legends, such as Jerry Lee Lewis and Chuck Berry, remain so scarred by scandals, injustices and regrets from decades earlier that they're barely able to appreciate their accomplishments.
In the long march of history, at least two poles of attraction and antagonism have been the norm in world politics. Rarely has only one nation carried the burden of leadership. The unipolar world of the 21st century, dominated for the past two decades by the United States, is a historical anomaly.
I start phone calls at 4 A.M. to cheer people up. The housebound, people in the hospital. People who, after decades, still can't get over what happened 10 or 15 years ago.
The only gift my dad ever bought me is still in my jewelry box. It died at 10 minutes to 11 decades ago, but the gold Caravelle watch keeps my dad alive. A watch isn't about keeping time. It's about stopping it.
