But with opportunity comes responsibility.

但是，随着机遇而来的便是责任。此句为倒装句，主语responsibility 置于谓语动词comes之后，with opportunity前置，是为了强调“机遇”，与短文第一句“We live in an age full of opportunities”相呼应。以伴随状语开头（With或Along with放在句首）时，句子可以倒装。例如：With globalization have come many problems. 全球化带来许多问题。

... you'll need to have a deep understanding of yourself —not only what your strengths and weaknesses are, but also how you learn, how you work with others ...

你需要对自己有一个深刻的了解，不仅仅是你的优缺点，还有你的学习方式，你与人共事的方式......not only ... but also ...用于连接两个表示对等、并列关系的成分，意为“不仅......而且......”，着重强调后者。例如：His speech not only broke the ice, but also aroused everyone's interest. 他的发言不仅打破了冷场, 而且引起了大家的兴趣。not only ... but also ...中的also通常可以省略, 有时甚至but also 一并省略。

... only when you operate from strength can you achieve true excellence.

只有当你充分发挥自己的长处时，你才能做到真正优秀。这是一个倒装句型，only前置于句首，主句中的情态动词can 置于主语you之前，还原后的结构是：you can achieve true excellence only when you ... （只有当......的时候）。当“only+副词/介词短语/状语从句”放在句首时，主句倒装。例如：Only in this way can you learn English well. 只有这样，你才能学好英语。Only after being asked three times did he come to the meeting. 叫了三次，他才来参加会议。Only when he is seriously ill does he ever stay in bed. 只有病得很重时，他才卧床休息。

Now, most of us, even those of us with modest talents, will have to learn to manage ourselves.

现在，我们中的大多数人，即使智力平平，也都得学会自我管理。even是副词，放在它所强调的词、短语或从句前，用来加强语气，表示“即使，甚至连......都......”之意。modest 普通的，一般的。