You have to be patient with yourself and trust the process.

Every artist dips his brush in his own soul, and paints his own nature into his pictures.

追求知识的旅程永无止境，每一个发现都为新的问题打开了大门。

有些东西是很难找到的。

理解学习问题的计算复杂性对于开发高效算法至关重要。