"The essence of mathematics is not to make simple things complicated, but to make complicated things simple."
数学的本质不是使简单的事情复杂化,而是使复杂的事情简单化。
In the end, we all have to face the consequences of our actions, no matter how much we try to avoid them.
如果你尊重纸的特性并相应设计,纸也可以是永久的。
The mind of the wise is an open book.