What is Marion J. Levy's tenth Law

Question

I recently discovered Marion Levy's laws. And Princeton's news article on his life claims his laws grew to eleven, but only adds the eleventh.

What is Marion J. Levy's tenth Law?

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Answer 1

This article quotes ten prior laws: (alternative source)

1. Large numbers of things are determined, and therefore not subject to change.
2. Anticipated events never live up to expectations.
3. That segment of the community with which one has the greatest sympathy as a liberal inevitably turns out to be one of the most narrow-minded and bigoted segments of the community.

4. Always pray that your opposition be wicked. In wickedness there is a strong strain toward rationality. Therefore there is always the possibility, in theory, of handling the wicked by outthinking them.

   Corollary 1: Good intentions randomize behavior.
   Corollary 2: Good intentions are far more difficult to cope with than malicious intent.
   Corollary 3: If good intentions are combined with stupidity, it is impossible to outthink them.
   Corollary 4: Any discovery is more likely to be exploited by the wicked than applied by the virtuous.

5. In unanimity there is cowardice and uncritical thinking.

6. To have a sense of humor is to be a tragic figure.
7. To know thyself is the ultimate form of aggression.
8. No amount of genius can overcome a preoccupation with detail.
9. Only God can make a random selection.
10. Eternal boredom is the price of constant vigilance.