President Letter 1 (August 14, 2021)
President Letter 2
President Letter 3
President Letter 4
President Letter 5
President Letter 6
President Letter 7
President Letter 8 (Graduation Speech)
President Letter 9
President Letter 10
President Letter 11
President Letter 12
President Letter 13
President Letter 14
President Letter 15
President Letter 16
President Letter 17
President Letter 18
President Letter 19
President Letter 20
President Letter 21
한국신문에 연재 (Korean/한국어, since December 27, 2021)