很少有人能在商业上取得成功，如果他缺少一定程度的自信。
Very few people succeed in business without a degree of confidence.
如果一个人有许多种类的知识，他将会有更多的机会取得成功。
If one man has many kinds of knowledge, he will have more chances to succeed.
如果一个人有许多种类的知识，他将会有更多的机会取得成功。
If one man has many kinds of knowledge, he will have more chances to succeed.
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