实现明天的唯一限制将是我们今天的疑虑。
The only limit to our realization of tomorrow will be our doubts of today.
最好的肥料是农民在田地上的身影。
如果你很难想象股市会损失 20%，你就不应该在股票中。
To say something is to perform an action， and to perform an action is to do something with words.
