数学的目标是理解我们观察到的现象背后的结构。

Emotions are biological signals that prepare the organism for action.

解决问题的最简单方法是否认它的存在。

The past is a puzzle, and we are all trying to piece it together.

The past is hidden somewhere outside the realm, beyond the reach of intellect, in some material object (in the sensation which that material object will give us) which we do not suspect.

An empire founded by war has to maintain itself by war.

开始总是在今天。