该句通过比喻结构将困难转化为进步的阶梯。
"stumbling" 该词是stumble的现在分词形式，常用于描述行走不稳、踉踉跄跄或即将跌倒的状态。此外，它也可以用作形容词，或者在固定短语中表示“偶然发现”（stumbling upon）。
An anthill may be small, but its impact can span a thousand miles.
Stumbling blocks are stepping stones to progress.
Knowing three days ahead brings ten years of prosperity.
It is better to live in poverty with peace of mind than to be wealthy through dishonest means and filled with worry.
Those who avoid reality will face an even more challenging future.
Withdraw when deep in thought; rest when at the height of success.
One who acts with sincerity will be met with sincerity in return.
Do not look for excuses to fail; look for reasons to succeed.
Even an immature attempt is better than a strategy that never sees the light of day.
An optimistic person sees an opportunity in every hardship,
while a pessimistic person sees a hardship in every opportunity.
Walk the right path, speak kind words, and do good deeds.
A spectator's name will never appear on the scoreboard.
The world makes way for those who possess goals and vision.
Do not attempt to create an ocean all at once; it must begin with small rivers and streams.
蚁穴虽小，溃之千里。
绊脚石乃是进身之阶。
先知三日，富贵十年。
宁可清贫自乐，不可浊富多忧。
回避现实的人，未来将更不理想。
受思深处宜先退，得意浓时便可休。
以诚感人者，人亦诚而应。
莫找借口失败，只找理由成功。
即使是不成熟的尝试，也胜于胎死腹中的策略。
积极的人在每一次忧患中都看到一个机会，
而消极的人则在每个机会都看到某种忧患。
出门走好路，出口说好话，出手做好事。
旁观者的姓名永远爬不到比赛的计分板上。
世界会向那些有目标和远见的人让路。
别想一下造出大海，必须先由小河川开始。
"Adversity is life's strict teacher; only the strong can become its distinguished students."
"Great men appear in adversity."
"Environment forces us to change and disaster promotes our growth."
"Without storms, a sail cannot show its true nature"
"The secret of life is turning stumbling blocks into stepping stones."