一个意识到自己纯净的心灵不会执着于任何事物，既不执着于肉体也不执着于灵魂。

Don't be afraid of making mistakes, be afraid of not learning.

When Henry Ford made cheap， reliable cars people said， ‘Nah， what’s wrong with a horse？’ That was a huge bet he made， and it worked.

应当通过具体事物探究规律，不可先设定规律来限制事物。

机器学习的最终目标是让机器能够从经验中学习，并随着时间的推移提高其性能。