没有责任感的效率不过是鲁莽的速度。
The ground floor is where the city and the building meet - it's the most important level.
The goal of education is not to increase the amount of knowledge but to create the possibilities for a child to invent and discover, to create men who are capable of doing new things.
世界上充满了显而易见的事物，但没有人会去注意它们。
The beauty of mathematics lies in its ability to connect seemingly unrelated ideas.