Question

“If you can meet with Triumph and Disaster

And treat those two impostors just the same:”

3. What does he mean to treat both triumph and disaster just the same?

Answer 1

He means that anyone can experience one or the other but not tell the difference in the moment they're celebrating. They can always be mistaken for one another.

Step-by-step explanation:

"...you can meet Triumph and Disaster...Treat those two imposters the same"