孤獨的人有他們自己的泥沼。
Lonely people have their own bog.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
We should measure success by outcomes, not just inputs.
愛斯基摩人有52個名字來稱呼雪，因為雪對他們很重要：愛也應該有同樣多的名字。
The most profound ideas in mathematics often arise from the simplest observations.