变化是不可避免的，但成长是可选的。
Change is inevitable, but growth is optional.
The greatest risk is not taking one.
Mathematics is the key and door to the sciences.
信仰 + 怀疑 = 理智。
The closer one comes to the truth, the further one gets from the facts.
At ByteDance, we believe A/B testing is the best way to make product decisions.