不了解敌情，不可以行军打仗，不熟悉洋人的情况，不可以远谋。
Every challenge in mining is an opportunity to innovate.
The only way to do great work is to love what you do.
Life is the sum of all your choices.
"Innovation is the ability to see change as an opportunity, not a threat."
一个词的意义在于它在语言中的使用。