I strongly agree with this statement. Looking back at what I consider to be my "best work", I can tell you it has never been produced during a dull moment in my life. This quote sums up the reason only a few paintings would be selected to be a part of my "best works" collection. In my opinion, there needs to be a tension behind a painting. There should be some kind of emotion that can be felt by all who view it.
Taking this quote into consideration, I now realize that I should take the downfalls in my life and express them through my artwork. That is what will create that tension that I am searching for. Yes, talking about inner troubles with others is a good thing. But I think as an artist it is alright to keep some of that tension inside and, when the time is right, release it onto canvas and create a masterpiece.