The beauty of mathematics lies in its ability to simplify complex ideas into elegant structures.
数学的美在于它能够将复杂的思想简化为优雅的结构。
Modern quarrying must marry the wisdom of geology with the innovation of engineering.
The only truly secure system is one that is powered off, cast in a block of concrete and sealed in a lead-lined room with armed guards - and even then I have my doubts.
学得越多，知道得越多；知道得越多，忘记得越多；忘记得越多，知道得越少。那么，为什么要学习呢？