This is because of a political principle that people should pay for international travel themselves, not through tax money.

How political principles are to be implemented is therefore usually open to some interpretation, and in part a personal responsibility.

One is whether there are important political principles at stake.

Their resistance to the political principle of responsible government contributed to its short life.

"But it sounds like he's trading political principles for military security and economic expansion."

All of us here locally have got used to your political principles.

Perhaps Congress could justify such a sacrifice of social justice and political principle if the country's economic future were at risk.

Certainly, as a political organizing principle, the party structure still works here.

In order to make this a reality, we need, above all, to bring three political principles to the fore.

However, for reasons of political principle I shall vote against the report.