From the book The Management Methods of Jesus by Bob Briner:
'Golfing great Jack Nicklaus is legendary for saying thanks. This began back in the early days of his career when he would stay in private homes during tournaments. Some people still prize the note of thanks he wrote them back in those days. As he became a superstar of golf and in business, Nicklaus continued to look for ways to express his gratitude, and it has paid off in many ways for him.
You will note that Jesus always gave thanks for food before he ate. He was exceedingly thankful to his Father for the power his disciples demonstrated when he sent them out two by two. His appreciation for the demonstration of love by the woman who bathed his head with expensive oil and who washed his feet with her tears is another fine example of his gratitude.
In business, really in all of life, it is impossible to say "thank you" too many times. Do as Jesus did. Say it often.'
Winners never hesitate to express gratitude.