始终

But they pay little attention to the opposite and more treacherous failing：false certainty, refusing to confess their mistakes and implicitly claiming (i), thereby embarrassing the nation and undermining the Constitution, which established various mechanisms of self-correction on the premise that even the wisest men are sometimes wrong and need, precisely when they find it most (ii), the benefit of (iii) process.

这是台湾清华大学 2013 年在清大『LaTeX 研習』上使用的投影片。

overbrace 和 underbrace 可以嵌套但是不能交错，本文解决了这个问题。

介绍几个 LaTeX 相关的工具网站

这篇文章介绍了 LaTeX 中关于行距控制的内容。