释义:美好事物之所在,就是受到玷污辱没,世人也不能使它低贱;丑恶事物之所在,就是有人鼓噪吹捧,使之抬高身价,世人也不能使它贵重。
可持续性不是一种选择,而是唯一的前进道路。
You are never too old to set another goal or to dream a new dream.
Heredity is nothing, environment is everything.
A mathematician's work is mostly a solitary pursuit, but it builds on the work of many others.