"For a person, faith and conscience are more important than life."
"As long as you make up your mind, there is nothing difficult in the world. I am afraid that the belief of a willing heart does not come out of thin air, but comes from believing in your own ability and wisdom."
"People should be ambitious and determined."
"White jade, even if it is broken, will shine; Pine trees, even if buried in snow, will always be gloomy; Bamboo, even if burned, is still tall and straight. "
"Nothing is impossible for a strong-willed person. If there is anything impossible, it is not a Korean. "
"People with strong faith and will will always cherish the future."
"For a person, conscience equals heart."
"The most difficult thing to abandon in the world is human conscience, and the most difficult thing to get is human conscience."
"Conscience is the mirror of behavior and the standard for judging truth and falsehood."
"A person who has done something against his conscience and still feels at ease is a person who has recovered from a serious illness."