Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
Every book is a quotation; and every house is a quotation out of all forests, and mines, and stone quarries; and every man is a quotation from all his ancestors.
唯一的限制是你的思想。
我们必须听从科学——忽视它只会导致不可逆转的损害。
I cannot and will not cut my conscience to fit this year's fashions.
Every story I write starts with a question I can't answer.
The only real failure is the failure to try.