The past is a foreign country; they do things differently there.
The greatest risk is not taking one.
法律不過是由關(guān)心社區(qū)的人為了共同的利益所制定的理性規(guī)定。
Rigor in proof is what separates mathematics from all other sciences.
數(shù)學(xué)的美在于它能夠用一種既精確又普遍的語言來描述宇宙。