I considered ending a previous post with a quote from Branch Rickey, but realized the quote deserved to be more than a punch line.

For those who don't know the man: Branch Rickey  (1881 –  1965) was an baseball executive best known for: breaking Major League Baseball's color barrier by signing Jackie Robinson and drafting Roberto Clemente; creating the framework for the modern minor league system; and introducing the batting helmet. His achievements and outspoken Christian faith earned him the nickname 'the Mahātmā.'"

This wise and accomplished fellow advised,  "Prefer excesses of enthusiasm to the complacency of wisdom."

Which doesn't work as a punch line, as it's easily misinterpreted to mean prefer enthusiasm to wisdom. 

To me, it means, when wisdom becomes complacent, it threatens to nullify the enthusiasm that arises from passion, imagination, or inspiration. 

In the context of writing, the proper role of wisdom (craft) is to serve enthusiasm.

For instance, wisdom ought to remind us that not every passage delivered from a passionate heart is a gem to be shared with readers. Some of them will only speak to us, or only to to us in a certain frame of mind. And even the real gems might not deserve to be in the context we've placed them, if they intrude upon the story.

All of which is why some folks claim writing can't be taught and some claim it can. Craft can be readily learned. Passion, imagination, and the openness to inspiration, not so readily.