PAC学习框架提供了一种正式的方法来分析学习算法的效率和有效性。
The night is a great library, but the stars are its books.
Love is the most important thing in life.
All good books have one thing in common - they are truer than if they had really happened.
The thing that is important is the thing that not seen… It is just as it is with the flower。 If you love a flower that lives on a star， it is sweet to look at the sky at night。 All the stars are abloom with flowers…
债券市场是未来经济活动的最终预测者。
任何挑战中最难的部分是迈出第一步。
"Truth is not always beautiful, nor beautiful words the truth."