A young man who has read the life story of eminent athlete of the twentieth century,or a coed who has steeped herself in every social-protest novel she can get her hands on ,may very well be learning all there is to know in a very limited area.But books are replete with so many wonders that it is often discouraging to see bright young people limit their own experiences. 请高手帮忙翻译，虽然没有生词，但不太理解内容！谢谢！

A young man/who has read /the life story/ of eminent athlete of the twentieth century,
一个阅读过二十世纪(所有）著名运动员生平传记的年轻人，
or a coed/ who has steeped herself/ in every social-protest novel/ she can get her hands on,
或者一位专注阅读了她所能找到的所有抗议社会现状小说的女大学生，
may very well be learning/ all there is to know/ in a very limited area.
很可能学无遗漏，但只在某一非常狭隘的领域。
But books are/replete with so many wonders/that it is often discouraging/ to see bright young people/ limit their own experiences.
但是书本中充满如此之多的奇妙，眼看这些聪慧的年轻人局限自己的见识，经常令人失望气馁。

大意是说，读书应该广博，才能最大限度地汲取营养。