Conflict of interest:

...

Jedi-Master Yoda of 'Star Wars' preaches:
"DO or DO NOT.  There is no 'TRY'."

(... Now, I'm all about "using my inner ONE-ness".)


HOWEVER, Mr. Miyagi of ''The Karate Kid' teaches:
"Don't say you CAN'T.  You must TRY."

(I've only had over 21 years of INTENSE "martial arts-training".)




CONCLUSION:
We "LEARN from our MISTAKES."
Ergo, we MUST apply "TRIAL and error".