吉凶祸福，是天主张；毁誉予夺，是人主张；立身行己，是我主张。
人生的吉福与凶祸，是上天主宰的；人事的毁誉和予夺，是别人操持的；自身的言行和道德，是由我决定的。
Handy measure: the distance between your fingertips of your outstretched arms at shoulder level is your height.
Every experiment is a conversation with nature, and sometimes nature whispers its secrets.