The mind is a set of information-processing machines that were designed by natural selection to solve adaptive problems faced by our hunter-gatherer ancestors.
每个实验都会破坏其开始时的某些条件。
The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.
"Silence is the only language that cannot be misinterpreted."