坚毅是对长期目标的激情和坚持。
Grit is passion and perseverance for very long-term goals.
史记
目的赋予心理活动意义。
You are only as young as the last time you changed your mind.
不能察觉事情发生前所显示出的端倪的人，灾难就要降临到他身上。