What advice from an old-timer does the man choose to ignore?

The advice the man ignores given by the old - timer was not to travel when the cold was deep and going to snap.

Explanation:

The newcomer from the story "To Build a Fire" was very foolish, judgmental and with over confidence. It was very simple advice, not to travel when it was fifty degrees outside and how unsafe it was.

The advice the man ignores given by the old - timer was not to travel when the cold was deep and going to snap. The newcomer dodges the advice and starts traveling in minus seventy five degrees with his dog. Not able to build the third fire and accidentally wetting his leg, the man freezes to death.