安全是最大的效益,事故是最大的浪费。
The world is a book, and those who do not travel read only one page.
Natural selection is the only known natural process that can build functional complexity.
科学的进步不是一条直线,而是一系列曲折,有时在新的进展之前似乎会倒退。
In the End, we will remember not the words of our enemies, but the silence of our friends.