比培训员工后失去他们更糟糕的是不培训他们而留住他们。
The only thing worse than training employees and losing them is not training them and keeping them.
The beauty of mathematics is that it is eternal, it doesn't change.
We must dare to think differently and challenge the status quo.
The only purpose for which power can be rightfully exercised over any member of a civilized community， against his will， is to prevent harm to others.
Now, my mama always told me that miracles happen every day. Some people don't think so, but they do.
