A scientific man ought to have no wishes, no affections, a mere heart of stone.  
科学人应当没有愿望、没有情感,只剩一颗如石之心。
A ship in port is safe, but that's not what ships are built for.
The camera is a tool to capture the essence of the moment.
宇宙充满了惊喜,而我们的工作就是揭开它们。