The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed.

"To write is to wage war against forgetting."

解读：知晓道理容易，付诸实践却困难重重，很多人困于理论，缺乏行动力，知行脱节带来巨大的挫败感与自我怀疑，督促人行动起来。

In preparing for battle I have always found that plans are useless， but planning is indispensable.

成功不是终点，失败也不是致命的，继续前进的勇气才是关键。

But man is not made for defeat. A man can be destroyed but not defeated.