可能近似正确（PAC）学习的概念在计算学习理论中具有基础性意义。
The concept of probably approximately correct (PAC) learning has been foundational in computational learning theory.
Success is no accident. It is hard work, perseverance, learning, sacrifice, and most of all, love of what you are doing.
One good thing about music, when it hits you, you feel no pain.
真正的进步来自于我们挑战现状并拥抱变革。
The most valuable resource we have isn’t oil—it’s the people who drive our industry forward.
投资者应警惕高费用和复杂的产品。