. (所以他才成功。)

冰冻三尺非一日之寒。/罗马不是一天就建成的。
Rome was not built in a day. *要做大事不是一朝一夕就可以成功的。

条条大路通罗马。
All roads lead to Rome. *为达到同一目的，可以采取多种手段。
There are many roads to success. (有许多办法可以取得成功。) *常用语。

入乡随俗。
When in Rome, do as the Romans do. *“在罗马就要照罗马人做的去做”。即“到另一个地方就要遵从那里的风俗习惯”。口语中常省略成Do as the Romans do.

熟能生巧。
Practice makes perfect. *任何事情都反复练习是成功的秘诀。

历史总在重演。
History repeats itself.
Another war started. (又一场战争开始了。)
History repeats itself. (历史总在重演。)

祸不单行，福无双至。
When it rains, it