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I have principles and I am not going to be forced to compromise them.

If you can find a way that your principles are actually the strategically smartest thing to do, you've kind of figured it out.

Important principles may, and must, be inflexible.

I have principles in my professional and personal life as to how things are done.

Never compromise your principles, even if it leads to difficulties in the short term.

I hate tests. It's a really lousy way to judge a person's ability.

You have to maintain your principles but have a broader appeal.

Testing leads to failure, and failure leads to understanding.

Everything that people say is testable.

You have to test your hypothesis against other theories. Certainty in the face of complex situations is very dangerous.