Be regular and orderly in your life, so that you may be violent and original in your work.
Commitment. This is my favorite word because in some way, people who are committed are always much more interesting and much more reliable, and much more, I would say, deep than people who are not.
In fact it's quite gratifying for me to see some of the people who really objected to this method of working now being quite so profligate in their use of it.