These two principles need each other.
Usually these two principles coincide, but sometimes they conflict.
But these two principles are not adversarial in all respects.
But how could people agree to structure a society in accordance with these two principles?
Together, these two principles provide the mechanistic basis of the double feedback loop, which combines positive and negative feedback.
As Google grows and spreads into new areas, these two principles are turning out to be in tension.
But in the present case, as a practical matter, are these two principles really impossible to reconcile?
The placing of these two principles together made the Khārijites highly inflammable fanatics, intolerant of almost any established political authority.
Tonight I pledge to you my unshakable dedication to these two principles of Thomas Jefferson's: Equal rights for all; special privileges for none.
They disagree about which of these two principles should be emphasized over the other at this time of economic crisis and rising income inequality.
In a debate with Douglas, Lincoln referred to an "eternal struggle between these two principles — right and wrong — throughout the world".
