A journey is a person in itself; no two are alike. And all plans, safeguards, policing, and coercion are fruitless. We find after years of struggle that we do not take a trip; a trip takes us.

But it is the same with man as with the tree. The more he seeks to rise into the height and light, the more vigorously do his roots struggle earthword, downword, into the dark, the deep - into evil.

人工智能的伦理问题必须与技术发展同步考虑。

在数学的领域里，每一个问题都是发现新事物和深刻见解的机会。

我唔怕被人批评，最怕系冇人理我。

I'm the reason your space won't expand.

解释：形体弯曲，影子自然就曲；形体正直，影子自然就正。