Concentration is not staring hard at something. It is not trying to concentrate.
W. Timothy Gallwey
Mountains should be climbed with as little effort as possible and without desire. The reality of your own nature should determine the speed. If you become restless, speed up. If you become winded, slow down. You climb the mountain in an equilibrium between restlessness and exhaustion. Then, when you're no longer thinking ahead, each footstep isn't just a means to an end but a unique event in itself.
Robert Pirsig
It goes without saying that as soon as one cherishes the thought of winning the contest or displaying one's skill in technique, swordsmanship is doomed.
Takano Shigeyoshi
Blessed is he who has found his work. Let him ask no other blessedness.
Thomas Carlyle