在机器学习中，偏差和方差之间的权衡对于实现良好的泛化至关重要。

弹奏美妙的五弦琴，读滋味无穷的圣贤书。挥笔写下文章，述说那古代圣王们的教范。点评：作者表示自己归隐田园后，以著述为中心，阐明圣则。苟纵心于物外，安知荣辱之所如？我将置身于世人之外，哪管什么荣耀与耻辱？

They are not monuments, but footprints. A monument only says, 'At least I got this far,' while a footprint says, 'This is where I was when I moved again.'

没有丑陋的爱，也没有英俊的监狱。

I am she who is the resurrection.

The hardest part of designing a system is deciding what to build.