The past is a foreign country, but we are all its citizens.
过去是一个异国，但我们都是它的公民。
数学是一门活生生的学科，随着新思想的出现而不断发展。
在没有其他信息的情况下，参数的最佳估计是其样本值。
A little more persistence, a little more effort, and what seemed hopeless failure may turn to glorious success.
"The truth is rarely pure and never simple."
我不喜欢被别人指挥。
The only way to discover the limits of the possible is to go beyond them into the impossible.
Our lives consist of how we choose to distort it.