谦虚的学生珍视真理,不关心对自己个人的颂扬。不谦虚的学生首先想到的是炫耀个人得到的赞誉,对真理漠不关心。思想史上载明,谦虚几乎总是和学生的才能成正比例,不谦虚则成反比。——普列汉诺夫
Experience is the child of thought , and thought is the child of action. We cannot learn men from books. (Benjamin Disraeli, British statesman)
All is but lip-wisdom that wants experience. (Philip Sideney, British satesman)