在计算学习的背景下，“可能近似正确”（PAC）学习的概念为理解学习算法的效率和可行性提供了一个框架。
The only limit is the one you set for yourself.
蒸汽的力量如今已被充分理解，剩下的只是改进实践。
On the way to a grand goal， celebrate the smallest victories as if each one were the final goal. No matter where it ends you are victorious.
The future of architecture is not about style, it's about performance.
The most dangerous strategy is to compete with rivals on their own terms.