科学是人类理解和改造世界的最有力工具。

I have to remind myself that some birds aren't meant to be caged. Their feathers are just too bright. And when they fly away, the part of you that knows it was a sin to lock them up DOES rejoice. Still, the place you live in is that much more drab and empty that they're gone. I guess I just miss my friend.

这是真的：要欺骗一个诚实的人是很难的。

We have the choice to use the gift of our life to make the world a better place—or not to bother.