解决复杂问题的关键通常是找到正确的抽象，这种抽象可以在不丢失问题本质特征的情况下简化问题。
The key to solving complex problems is often to find the right abstraction that simplifies the problem without losing its essential features.
You have to believe in yourself when no one else does – that makes you a winner right there.
Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. And the only way to do great work is to love what you do. If you haven't found it yet, keep looking. Don't settle. As with all matters of the heart, you'll know when you find it. And, like any great relationship, it just gets better and better as the years roll on. So keep looking until you find it. Don't settle.
If one has realised, he is that which alone is, and which alone has always been. He cannot describe that state. He can only be that.
