“You must expect failure after failure after failure before you succeed.” – Edwin Land

“Progress is a nice word. But change is its motivator. And change has its enemies. Only those who dare to fail greatly can ever achieve greatly” – JFK

“策に三策あるべし—A案・B案・C案・撤退” – 北尾吉孝 (SBI)

You need to know what you are aiming for, but also what would constitute as failures. You need to define errors, otherwise you wouldn’t correct them.

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