The essence of mathematics lies in its freedom.
释义:征服世界易,驾驭内心难。
追随你天然的好奇心,解决自己的问题,学习只是相关的副产品。
We are not selling water, we are selling health and quality of life.
如果您不愿意对它们负责,那就不要有好主意。
Change the way you look at things and the things you look at change.
The detective story is the normal recreation of noble minds.