从来没有人有过这样的朋友，如此深情，如此忠诚，如此娴熟。
No one had ever had such a friend, so affectionate,so loyal and so skillful.
写作是一种记忆的形式。
The only limit to our realization of tomorrow will be our doubts of today.
The most important principle of positive psychology is that other people matter.