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Innovation distinguishes between a leader and a follower.

You are never too old to set another goal or to dream a new dream.

Don't let yesterday take up too much of today.

譯文：先從憂患方面考慮事情的人，就會享受到樂事，一時的操勞辛苦是永遠安逸的開始。賞析：我們做事要有憂患意識，要有先苦后甜的意識，如果只圖安逸快樂，就是禍患的開始。