人类的历史在很大程度上是与环境斗争的历史。
别像扶老太太过马路一样帮上帝过马路。
质量从来不是偶然的;它始终是智慧努力的结果。
The most exciting breakthroughs of the 21st century will not occur because of technology but because of an expanding concept of what it means to be human.
唯一能阻止我的人就是我自己。