I don't rap for dead presidents; I'd rather see the president dead.
我不是为死去的总统说唱；我宁愿看到总统死去。
Every day is a new opportunity. You can build on yesterday's success or put its failures behind and start over again.
We must face our reality through literature.
The first step towards philosophy is incredulity.
The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.
The true joy of mathematics lies in the act of discovery, not just the result.
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。