Source Sentence
彼はキャリアで誇れる成功を収めていますが、高みに達したときこそなお一層前進すべきだという教えを決して忘れず、常に自己に挑戦し、新たな高みを目指しています。
He has achieved proud success in his career, yet he never forgets the principle that even when one has reached great heights, one should still strive for further progress, continually challenging himself and pursuing new peaks.