遗传密码的发现为理解遗传和疾病的分子机制提供了基础。

The best way to measure how much you've grown isn't by inches or the number of laps you can now run around the track, or even your grade point average - though those things are important, to be sure.It's what you've done with your time, how you've chosen to spend your days, and whom you've touched this year. That, to me, is the greatest measure of success.

最有力的时刻是无言的时刻。

过去不是我们抛在身后的东西；它是我们内心携带的东西，塑造着我们的现在和未来。

穷人常常被迫做出没有人应该做出的选择。