What evidence from "To build a fire" might lead you to this inference

This question is missing the inference. I've found the complete question online. It is as follows:

What evidence from "To Build a Fire" might lead you to this inference "The man is too confident."

The evidence that leads to the inference "The man is too confident" is:

"The old-timer had been very serious in laying down the law that no man must travel alone in the Klondike after fifty below. Well, here he was; he had had the accident; he was alone; and he had saved himself. Those old-timers were rather womanish, some of them, he thought."

Explanation:

The main character in Jack London's short story "To Build a Fire" ends up freezing to death, defeated by nature while traveling in bad weather on his own. As a matter of fact, we may say that this man was killed by his own arrogance. Nature did not do anything special or more violent to put him down. It was his exacerbated confidence in himself and his abilities that made him go out by himself. An old-man, more experienced and, therefore, wiser, did warn him not to do so. The man, however, chose to ignore his advice. As we know, the archetype of the old man works as a guide, a mentor in stories and movies. Heeding their advice brings success. Ignoring it, as this man did, results in tragedy.

d. cassius cannot believe that a weakling like caesar has become so great.