Well begun is half done, as the saying goes. It is extremely important for a job applicant to make sufficient preparations while seeking employment. From my standpoint, whether or not one has prepared adequately clearly makes a difference in (affects) his chance of success. I have a friend who is earning around 100 thousand dollars a year in a computer software company. He told me that, from his own experience, those who can decide whether an applicant could be employed prefer people who are well prepared. What% the word "saying"(Line 1,Para 1) in this passage mean