Mathematics is the music of reason.
數(shù)學(xué)是理性的音樂(lè)。
The act of writing is an act of courage.
The best stories are those that make us question ourselves.
經(jīng)濟(jì)學(xué)特別是宏觀經(jīng)濟(jì)學(xué)中說(shuō)的投資是耐用資本品如廠房設(shè)備的生產(chǎn)，而平常說(shuō)的“投資”是指購(gòu)買(mǎi)資產(chǎn)如股票，這和經(jīng)濟(jì)學(xué)中的投資不同，為了區(qū)分，這種投資被稱(chēng)為金融投資。