英语短文，各位大神靠你们了，谢谢！

英语短文，各位大神靠你们了，谢谢！
In order to learn to be one’s true self, it is necessary to obtain a wide and extensive knowledge of what has been said and done in the world, critically to inquire into it; carefully to think over it; clearly to sift(详察) it; and earnestly to carry it out.
It matters not what you learn, but when you once learn a thing, you must never give it up until you have mastered it. It matters not what you inquire into, but when you inquire into a thing, you must never give it up until you have thoroughly understood it. It matters not what you try to think out, but when you once try to think out a thing, you must never give it up until you have got what you want. It matters not what you try to sift out, but when you once try to sift out a thing, you must never give it up until you have sifted it out clearly and distinctly. It matters not what you try to carry out, but when you once try to carry out a thing, you must never give it up until you have done it thoroughly and well.
If another man succeeds by one effort, you will use a hundred efforts. If another man succeeds by ten efforts, you will use a thousand efforts.
1.According to the author, the ultimate purpose of study is to learn to_____.
A. be one’s true self
B. be a specialist
C. succeed in a profession
D. become wealthy
2.The end of inquiry should be _____.
A. action
B. understanding
C. thought
D. analysis
3.To successfully carry out the author’s program, a person would have to be, most of all, _____.
A. extremely intelligent
B. very wealthy
C. very persistent
D. both A and B
4.According to the article, another man’s success should _____.
A. urge us to greater efforts
B. cause one to stop trying
C. make us envious
D. not be taken into account
5.Which of the following statements is implied but not stated in the passage?
A. It is necessary to obtain a wide knowledge of what has been said and done in the world.
B. The way to knowledge is through specialization.
C. Success depends not so much on natural ability as it does effort.
D. Success in one’s profession is least important in one’s life.