每个项目都是一次新的冒险，一次新的挑战。
解释：货卖完了才知道不足，是由于不懂得计量；事情结束了才知道有余，是由于不懂得调节。
The poet is a man who puts up a ladder to a star and climbs it while playing a violin.
In times of crisis, true leaders emerge by putting people before profits.