We should weep for men at their birth, not at their death.
 我们应该为人们的诞生而哭泣,而不是为他们的死亡。
The only way to do great work is to love what you do.
"It's not what you look at that matters, it's what you see."
Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world.