子曰：“学而不思则罔，思而不学则殆。”
孔子说：“读书不想事，越学越糊涂；想事不读书，越想越头痛。”
The complexity of a learning problem is often determined by the size and structure of the hypothesis space.
计算的目的是洞察，而非数字。
这是最好的时代，这是最坏的时代。
The secret to happiness is to face the fact that the world is horrible.
To thrive in a changing world, you must be willing to adapt and innovate.
