计算学习理论中的挑战是理解学习算法的能力和局限性。
The challenge in computational learning theory is to understand the capabilities and limitations of learning algorithms.
The only thing that you can control is your effort and your attitude.
这句话杨在不同场合说过多次，每次表述时可能有个别字的差异。
烘焙不仅仅是遵循食谱；它是关于理解食材和过程背后的科学。