Thomas Phelps on investing, judgment and experience

Good judgment comes from experience and experience comes from bad judgment.  I've had a great deal of experience.

~ Thomas Phelps, 100 to 1 in the Stock Market: A Distinguished Security Analyst Tells How to Make More of Your Investment Opportunities (1972)

Will Rogers on good judgment

Good judgment comes from experience, and a lot of that comes from bad judgment. 

~ Will Rogers

Charles Akre on judgement

Good judgement comes from experience, experience comes from bad judgement.

~ Charles Akre, GuruFocus Value Conference, 2018