Vincent van Gogh was sane ...

Vincent van Gogh was sane when he painted that piece of art, because when you you feel the mania and depression, you have all the heaven and hell your heart has ever experienced that you can tap into, to be able to create something that can last several lifetimes.
 Paul Dalio

Quotes from the same author

I feel much more emotion than I did before, and more meaningful emotion and richer emotion than when I was manic. I'm able to experience meaningful things that can only be experienced when I'm stable, like a family.
 Paul Dalio
Do you think you can love too much? Or experience too much beauty, at the cost of too much pain? Do you think when art is defined by expressing so much beauty and so much pain, just to be able to cope with both - and bring other people something creatively beautiful at the cost of that pain - that we can draw a line of 'normalcy'? It's important to think about.
 Paul Dalio
I want people to see the beauty of that condition through the eyes of the characters. In doing that, they can allow people who have the condition to be more accepting of it, and to be open about it. That would be a contribution to the people who have it, and considering that 38% of the Pulitzer Prize winning poets are Bipolar, to think about how much these individuals have contributed to the human spirit.
 Paul Dalio
The patient needs to believe that they can keep the fire while being medicated. The doctors must tell them, "I understand that you experienced something beautiful. I understand that you saw the stars pulsing spirals of fire across the sky like Van Gogh did when he was looking outside the sanitarium window. But you know what? He didn't paint ['Starry Night'] when he was manic. He painted it when he was sane because he didn't need the mania to have the magic.
 Paul Dalio
After working with so many great actors and acting students in film school, it was a whole other thing working with Luke [Kirby].
 Paul Dalio