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。
在追求知识的过程中,我们必须始终保持谦逊,对新思想持开放态度。
我不完美,但我一直在努力变得更好。
"The scars of history are not always visible, but they are always there."
We still have a long way to go. But we are moving in the right direction.