At the time of his death, the following 2 quotes were found on his blackboard:
"What I cannot create, I do not understand" and right beneath this "Know how to solve every problem that has been solved".
"What I cannot create, I do not understand" and right beneath this "Know how to solve every problem that has been solved".
However, some have argued that with deriving foundational knowledge you attain a discipline and through this process the decisions you make about taking the next step are done completely differently. You sincerely evaluate whether to take that next step.