The process of doing mathematics is more important than the result.
山越高,山谷就越深,向下看陡峭的山谷阴森森的
预测未来的最好方法就是发明它。
在商业中,如果你不前进,你就在落后。
Every tomorrow has two handles. We can take hold of it with the handle of anxiety or the handle of faith.