The self grows by reaching outward.

有时候生活会给你当头一棒，但不要失去信心。

The success of a learning algorithm depends on its ability to balance between fitting the data and avoiding overfitting.

化学的语言是普遍的，它的符号被所有国家理解。

People, even more than things, have to be restored, revived, reclaimed and redeemed; never throw out anyone.

数学的美在于它简化复杂问题的能力。