In order to acheive success, you have to know what you are doing, love what you are doing, and believe what you are doing.
Interest is the constant power to keep the working passion, and is also an important condition for success. Even if you are reluctant to stick to the work which you are not interested in, you will lose patience and confidence at last.
So let work be a pleasant journey. Just like Haw, even before he found what he hoped would be a great supply of New Cheese, if ever, he knew that what made him happy wasn't just having cheese. He was happy when he wasn't being run by his fear. He liked what he was doing. Knowing this, Haw didn't feel as weak as he did when he stayed in Cheese Station C with no cheese.