《菜根谭·修身》
想要练就精金美玉的人格品行，一定要如同烈火炼钢般经历艰苦磨练；想要建立惊天动地的事业功绩，必须如履薄冰般经历险峻的考验。
欲做精金美玉的人品，定从烈火中煅来；思立掀天揭地的事功，须向薄冰上履过。
To cultivate a noble character like gold and jade, one must go through hardships like steel tempered by fire. To establish a world-shaking career, one must go through dangerous tests like walking on thin ice.