I need your help because I don't understand at all the expression "no maybes" in the following dialog. The context : an old man is making a speech for his birthday in front of all his guests. He is more or less telling the story of his life.
The man : I never thought I would live that long. I thought I would be killed by the Nazis. But you know the end of the story. Six kills...
MAYBE (NOUN): Informal 1. An uncertainty: There are so many maybes involved in playing the stock market. 2. An uncertain reply: It's better to receive a fast and honest no than a drawn-out maybe. (Am Heritage Dictionary)