Carrying out one's original intention to the end; a four-character idiom expressing steadfastness in one's resolve.
彼女は初志貫徹の精神で研究を続け、ついに成果を出した。
With a spirit of carrying out her original intention, she continued her research and finally produced results.
初志貫徹を目標に、毎日少しずつ努力している。
Aiming to carry out my original intentions, I make steady efforts every day.
会社のスローガンは『初志貫徹』だと掲げた。
The company adopted 'Carrying out our original intentions' as its slogan.