But the only principle I can see in this life, is that one must forfeit the less for the greater.

My business ethics are the only principles I have left.

Well if you think about it it's the only principle that America has ever gone to war over.

"These two," he says, "are, and always will be, the only principles of action in man."

The only guiding principle is progressive innovation in education, administration and social responsibility.

The only principle we can accept is to negotiate our values or fight.

His only principle was to further his own career.

"It's the only principle of a career politician," the narrator says.

But the only principle at issue is whether he should be spending the taxpayers' money for private litigation.

Secularism is the only principle by which the institutions can allow citizens as a whole to access public services according to their beliefs.