研究古DNA如同打开通向过去的窗户。
The study of ancient DNA is like opening a window to the past.
The worse a situation becomes, the less it takes to turn it around, the bigger the upside.
The greatest gift you can give someone is your time, because you are giving them a portion of your life that you will never get back.
让自己振作起来的最好方法就是试着让别人振作起来。
Life is far too important a thing ever to talk seriously about it.