True happiness comes from inner peace.
司马牛问君子。孔子说:“君子不忧不惧。”问:“不忧不惧,就能叫做君子吗?”孔子说:“问心无愧,何来忧惧?”
"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them."
引力波是观察宇宙的一种新方式,它让我们能够听到宇宙的声音。