초반에 자기 실력이든 운이 좋아서든 잘나간다고 해서 언제까지나 그럴 거라고 착각했다가는 뒤에 가서 힘들어진다.
Whether you are doing well at the beginning because of your own ability or just because you are lucky, if you are mistaken that you will always be so, then it gets tough afterwards.