根据所给中文完成句子：
The experience made him realize that many people have more _____than they think they have, and that _____of success is as often the result of lack of knowledge of how to ______one's ability, lack of ______,and lack of determination as it is the result of lack of ability.
[参考译文]这一经历使他认识到，很多人的实际能力比他们本人认为的要强。他们之所以很少取得成功，常常是因为他们缺乏运用自身能力的知识，缺乏信心和决心，而不在于他们缺乏能力。
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