Many pilots rely on self selected enthusiasts, vendor methodologies, and rough time saved calculations rather than robust measures of service quality or error rates.
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worry is not driven by any specific fear, such as the fear that you might lose your job or a loved one may fall ill. Instead, they proposed, worry is driven by the inability to tolerate uncertainty itself.
Jeroen van Baar
The best ideas have some magical quality where one day they seem impossible, and the next day they seem inevitable. The hard part is being in the room when the transition happens.
Paul Graham — Various Y Combinator talks and essays
The best investment is in yourself. The second best is usually in a business that does something you don't understand, because then you're forced to think independently.
Charlie Munger — Poor Charlie's Almanack