The challenge in computational learning theory is to understand the capabilities and limitations of learning algorithms.

However difficult life may seem, there is always something you can do and succeed at.

广东话谚语

The purpose of our lives is to be happy.

理解变化的唯一方法是投入其中，与之共舞。

I always try to do something different, something that challenges me.

Civilization will perish without forests.