Mr Watson's explanation also points to the underlying motivation for this week's deal: share prices.
But historians say the underlying motivation for waiting periods can be traced back centuries.
It also captured the underlying motivation of these soldiers: caring for their own and doing their best to complete the mission, no matter the resources or situation.
"What is the underlying motivation?" This defence goes to the heart of the battle with the Murdoch empire, which plans to charge for online services, but also with politicians.
Whatever the underlying motivation, Mr. Putin "has changed the dynamic of U.S.-Russian relations," said Michael McFaul of the Carnegie Moscow Center, who discussed Mr. Putin's foreign policy with several Kremlin officials last month.
But with this popularity, some experts are concerned that the underlying motivation for many of the young people seeking surgery — namely, self-esteem — is being disregarded in the drive to look, as Kristen puts it, "normal".
The underlying motivation here is perhaps the most ambitious undertaking ever attempted in the history of science the attempt to explain the creation of truly everything from literally nothing.
"It seems fairly certain that even if Sinochem puts together a financing consortium, the underlying motivation would be to secure access to a key commodity," the Conference Board of Canada wrote in a report about possible Chinese interest in Potash.
"There are some incentives for not delivering complete clunkers, but the underlying motivation for both the university and the agent is to get warm bodies in the door," said Philip G. Altbach, the founding director of the Center for International Higher Education at Boston College.
The overthrow of Saddam Hussein, whatever the underlying motivation, certainly removed a potential threat to American interests, but a bird's-eye view as the sixth anniversary of the war approaches shows that the Middle East remains as troubling and turbulent as ever.
But what exactly is the underlying motivation for such uncooperativeness?
