La duda es el principio de la sabiduría.
在我步入青少年之前,我感觉自己就像一位老人。
For farmers to prosper, they must take the path of industrialization.
任何农场最好的肥料是农民的足迹。
Great deeds are usually wrought at great risks.
It's on the strength of observation and reflection that one finds a way. So we must dig and delve unceasingly.