你无法回到过去改变开头，但可以从现在开始改变结局。

Facts do not speak for themselves. They speak for or against competing theories. Facts divorced from theories or visions are mere isolated curiosities.

The truth is like the sun. You can shut it out for a time, but it ain't goin' away.

创新不仅仅是创造新事物，更是改进已有的事物。