“ The ultimate ignorance is the rejection of something you know nothing about yet refuse to investigate. 最大的无知是拒绝一些你一无所知却拒绝调查的事情。 Wayne Dyer 韦恩·戴尔
“ If you never ask yourself any questions about the meaning of a passage, you cannot expect the book to give you any insight you do not already possess. 如果你从来没有问过自己关于一篇文章的意义的任何问题,你就不能指望这本书能给你任何你尚未拥有的洞察力。 Mortimer J. Adler 莫蒂默·杰尔姆·阿德勒
“ If mathematics is to be understood widely, we need to emphasise its elegance and its applications. Sometimes it seems that universities want to emphasise how difficult it is! 要使数学得到广泛的理解,我们需要强调它的优雅及其应用。有时候,大学似乎想强调这是多么困难! Johnny Ball 约翰尼·鲍尔