证明告诉我们该把怀疑集中在何处。
A proof tells us where to concentrate our doubts.
艺术家必须保持自由，甚至要从自己的风格中解放出来。
The coal research is just as important as the DNA work.
目标不是永远活着，而是创造一些能够永存的东西。
Sustainable development is not a choice, but a responsibility.
抱最好的希望，做最坏的打算。