[Blood of Tyrants]

I read that 19 of the 21 great civilizations weren’t conquered by external enemies but were destroyed by corruption from within.

[jsanders2001]

< I read that 19 of the 21 great civilizations weren’t conquered by external enemies but were destroyed by corruption from within.

I wouldn't doubt that one bit. Corruption is like a cancer. It's destroys it's host.

[fhayek]

Which two were the exceptions?