In handing down the sentences, chief judge Adem Ibrahim told the condemned men they should have learned lessons from previous convictions stemming from violence that followed Ethiopia's last national elections in May 2005.

VOA: standard.2009.12.23

Kam says marketocracy.com was born of lessons learned in his two previous startups.

FORBES: Hot Hand Fund

The authorities appear to have learned the lessons of previous deadly virus outbreaks such as the H5N1 avian flu and Sars (Severe Acute Respiratory Syndrome), and this time around have been quick to share information with the WHO.

BBC: The world response to flu crisis

It turns out that venture capitalists and executive recruiters are not stupid, they just learned the wrong lessons from previous failures.

FORBES: Preparing To Fire an Executive