The historian must be impartial, but not indifferent.
历史学家必须公正,但不能冷漠。
如果你没有偶尔失败,那说明你没有在做任何非常创新的事情。
The greatest untapped resource in the global economy is the full participation of women.
"A mathematician is a device for turning coffee into theorems."
书是你握在手中的一个梦。