The wisdom of William James

I ran across this on Gretchen Rubin's blog:

Seek out that particular mental attribute which makes you feel most deeply and vitally alive, along with which comes the inner voice which says, 'This is the real me,' and when you have found that attitude, follow it.

William James holds a secure position as one of my favorite thinkers and writers.

Addendum: Maybe it's not James, see the comments.