切勿认为任何事物是绝对确定的。
——在广州全国青年联合会演说，1923年10月21日
In mathematics, the journey is just as important as the destination.
我只是尽量保持冷静，不让压力影响我。
Complexity and contradiction are not problems to be solved, but opportunities to be explored.
In machine learning, the trade-off between bias and variance is crucial for achieving good generalization.