In algebra, the equality of two quantities is expressed by an equation.
在代数中,两个量的相等性通过方程来表达。
The purpose of computation is insight, not numbers.
艺术不应是一种奢侈品,而应是每个人的日常必需品。
做出伟大工作的唯一途径就是热爱你所做的事情。