The second principle simply says that 'personal data shall be held only for one or more specified and lawful purposes'.

As the first principle says, evolution cannot be stopped.

But my principles say that shouldn't be a reason to stop fighting.

Historic American principle says no; local and state authorities are responsible for the welfare of their communities.

But another principle said that a negotiator should never admit to being under a deadline.

The principle of the second best says the following.

These principles said that Japan could not create or try to get nuclear weapons.

So that principle basically says you can't do that kind of thing, even if it's network management to deal with congestion problems.

This principle says that action taken by the Union must not go beyond what is necessary to achieve the objectives of the treaty.

Put another way, this principle says that the question "why?"