质量从来不是偶然的，它总是智慧努力的结果。
Quality is never an accident; it is always the result of intelligent effort.
The world is a labyrinth, and we are all just trying to find our way out.
I don't think that everyone should become a mathematician, but I do believe that many students don't give mathematics a real chance.
每个回声都包含着它所处空间的历史。
社会可以并且确实执行自己的命令，如果它发布错误的命令，而不是正确的，或者在不应该干涉的事情中发布任何命令，那么它实际上在实践一种比许多政治压迫更可怕的社会暴政，尽管通常不受到如此极端的惩罚支持，但它留下的逃脱手段更少，深入到生活的细节中，甚至奴役了灵魂本身。
"Sustainability is not a cost, it's an investment in our collective future."
