If one only wished to be happy, this could be easily accomplished; but we wish to be happier than other people, and this is always difficult, for we believe others to be happier than they are.

"A good book is an event in my life."

当下不过是换了伪装的过去。

教育的艺术必须从教育的科学中衍生出其规则。

尽一切职责，而不希望得到任何回报。