The only thing that matters is what you believe in yourself.
Patience and persistence are key to achieving long-term goals.
挑战在于使不可能看起来真实，使真实看起来非凡。
学习理论中的一个关键见解是，假设类的复杂性对于泛化至关重要。
The only way to do great work is to love what you do.
The more you know, the more you realize you don't know.
