The line separating success from failure isn't always clear, but for me success means setting a goal, then doing your utmost to achieve it. It is peace of mind, a sense of satisfaction and gratification.
成功和失敗沒有清楚的分界，成功的定義是建立一個目標，盡力去做就是成功，就是心安理得，就覺得滿足、欣慰。