However difficult life may seem, there is always something you can do and succeed at.
I'm not afraid to take risks. I'm not afraid to fail.
好的悬疑故事应该让读者一直猜测到最后,但所有线索都必须存在。
一个好的系统设计是使做正确的事情变得容易,做错误的事情变得困难。