"Truth is the essential foundation for producing good outcomes."

"Knowing how to deal well with not knowing is far more important than knowing."

"Pain plus reflection equals progress."

"Mistakes are acceptable if you learn from them; unacceptable if you don't."

"Think for yourself while being radically open-minded."

"People who worry about looking good typically hide what they don't know, and people who are more concerned with achieving goals expose what they don't know."