A proof tells us where to concentrate our doubts.
Engineering is about solving problems, not just making things look pretty.
You have to be willing to fail, to be wrong, to keep pushing forward even when everyone tells you you're crazy.
A well-designed market minimizes the opportunities for strategic manipulation.
弦理论的美妙之处在于它提供了一个框架,使引力和量子力学可以和平共处。