I suddenly see that 10 important years (20-30) somehow, some people use it ineffectively, read a lot, study a lot, but result disappointingly poor: life is too poor of ideas, at 35 dont have anything to tell, some precisely opposite. What is the reasons? Some use only 2 hours, seem not to read/study much but what has been read/studied seems extremely the right thing. Others wasted 5 hours but after some time no better than 0 hours. Why?
Really I still feel sudden, dont know how to express in English. Temporarily record some words, think again later.