Lorenzo Ghiberti, the fifteenth-century sculptor, had all the character traits necessary to be a great day trader: dedication, focus, concentration, determination, and willpower to complete a task. Ghiberti spent 48 years sculpting four bronze doors for the Baptistery of San Giovanni in Florence, Italy. Imagine working on a single project for 48 years. With no one to talk to for most of the day, the painstaking work would seem endless.
In many respects, the willpower and mind-set of a trader is not too different from that master sculptor. Both work alone, in focus, concentrating on minor detail, forming the details in their minds, then bring it forth. They are both very individual, solemn businesses, and the results are rather slow and plodding, yet they can add up to a masterpiece.
– Victor Sperandeo, Trader Vic II: Principles of Professional Speculation