You are never too old to set another goal or to dream a new dream.
In nature, we find solace for our souls and answers to our deepest questions.
我不想表达任何东西。我只是想看。
The properties of the whole are not deducible from the properties of the parts.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
一切能被说出的都能够清楚地被说出，而我们不能谈论的，必须保持沉默。