Kahn's architecture has several defining qualities.

VOA: special.2009.12.13

"What is required of us now is a new era of responsibility Ca recognition on the part of every American, that we have duties to ourselves, our nation and the world, duties that we do not grudgingly accept but rather seize gladly, firm in the knowledge that there is nothing so satisfying to the spirit, so defining of our character, than giving our all to a difficult task."

VOA: special.2009.01.24

"If we keep defining our happiness through how much we consume it's going to lead to tragic end,"

VOA: standard.2010.01.23

"I don't look at this moment as the defining end to my relationship with the game of basketball,".

VOA: standard.2009.12.24

Not long ago, even top college students would likely have had trouble defining sustainability.

VOA: standard.2010.04.22

Agha Saeed,a California State University political scientist and founder of the Pakistan American National Alliance, an organization of six Pakistani-American groups, called the planned demonstration sha defining moment for Pakistan.

VOA: standard.2009.03.11

has been a defining trait of politics since in 1991."

VOA: standard.2009.11.01

"But above all,your visit at this pivotal moment in history speaks to the opportunity before us to build the relationship between our nations born in the last century into one of the defining partnerships of the 21st century,"

VOA: standard.2009.11.25

"The fight against terrorists and violent extremists has been returned to its right and proper place -no longer defining, indeed,distorting, our entire national security and foreign policy, but rather serving as a vital part of those larger policies,"

VOA: standard.2009.08.06