Psychological understanding comes from seeing mind in action.

In the end, we only regret the chances we didn’t take.

The text is a tissue of quotations drawn from the innumerable centers of culture.

第一个错误的假设是质量意味着好、奢华、闪亮或重量。质量意味着符合要求。

计算理论不仅仅是关于解决问题，还涉及理解可计算性的极限。