數(shù)學(xué)之美在于它能夠精確而優(yōu)雅地描述自然界的基本法則。
We are all haunted by the ghosts of our own pasts, and sometimes, by the ghosts of others.
樂觀主義者認(rèn)為這是所有可能世界中最好的一個。悲觀主義者知道確實如此。
Those who dream by day are cognizant of many things which escape those who dream only by night.
每一個結(jié)束都是一個新的開始。