The concept of NP-completeness has provided a powerful tool for understanding the complexity of computational problems.

在数学中，最简单的问题往往导致最深刻的发现。

Re graphics: A picture is worth 10K words - but only those to describe the picture. Hardly any sets of 10K words can be adequately described with pictures.

不追求大道而走出迷途，即使有贤才也算不上真正的男子汉。

暗示某些历史真相或古墓之谜不应被揭开。

“唯一比失明更糟糕的是有视力但没有远见。”