解释：树立品德，莫如日积月累，不懈怠地培植；治疗疾病，莫如彻底消除，不留下任何病根。

Now, I am not going to stand here and tell you that failure is fun. That period of my life was a dark one, and I had no idea that there was going to be what the press has since represented as a kind of fairy tale resolution. I had no idea then how far the tunnel extended, and for a long time, any light at the end of it was a hope rather than a reality.

翻译：鼓励人们坚持不懈地努力，最终会取得成功。