Dong Hoon: Every building is like a struggle between external and internal forces. Wind, weight, tremors, we have to take into account all external factors that may affect the building so the design has to be able to withstand all that...We always have to make sure that the internal forces can withstand the external forces. And life, in a way, is a struggle between internal and external forces too. No matter what happens, you'll be able to withstand anything if you have sufficient internal forces.
Ji Ahn: So what are the 'internal forces' when it comes to life?
Dong Hoon: I don't know...
Ji Ahn: You said that I seemed to have strong 'internal forces.'
Dong Hoon: One of my friends was a really smart guy. I thought we'd have a really successful guy come out of the neighbourhood, but not long after that guy graduated college he shaved his head and became a monk. At the time his parents were bedridden and sick, and the entire neighbourhood was in shock. And there was something he said as he left. He said he wanted to try becoming a person who had nothing. Everyone struggles in their lives trying to have things, so they live their entire lives trying to prove themselves to everyone, but nobody truly knows what they are gaining by doing that. And even if you do end up getting what you want, if the things that made you feel safe and the things that made 'you' start getting fractured, it's impossible to withstand. And when the things that you thought made up who you are and the people who you thought were pillars in your life don't seem to provide you with any real strength and when nothing is what it seems...I guess, subconsciously, I agreed with him..."
(Beginning of Ep.8)