The unity of mathematics is not imposed but discovered.
数学的统一性不是强加的,而是被发现的。
Paper has been the carrier of human knowledge for centuries. Our duty is to ensure it continues for centuries more.
"To be an actor is to be a perpetual student of human nature."
能源的未来不是要在化石燃料和可再生能源之间做出选择,而是找到确保可靠性、可负担性和可持续性的正确平衡。