Bong-gun Jang's Pen-Point Memoirs My Newspaper Company Story 6

I have strong teeth. I can even crack shells with my molars. Yet those strong teeth have worn away completely.

Whether from the stress of working at the newspaper company, I ground my teeth too much while sleeping. Squeezing out something to meet deadlines every day was not an easy task. My front teeth seem to have worn down by about a quarter. After retirement, I nearly stopped grinding my teeth altogether.

If one works in a single field for about 30 years, one should achieve some level of mastery, but instead of mastering my craft, I only ground away my teeth.