不了解儿子就看和儿子交往的朋友，就清楚了；不了解君主就看看君主身边的人，就明白了。
The day you stop learning is the day you stop growing.
The coal industry must evolve or risk becoming obsolete. Adaptation is the key to survival.
"Effort makes you. You will regret someday if you don’t do your best now. Don’t think it’s too late but keep working on it."