The market is always changing, the only constant is change itself.

And as I am an honest puck,if we have unearned luck,now to's scape the serpent's tongue,we will make amends ere long,else the puck a liar call.

The study of mathematics is the indispensable basis for all intellectual and spiritual progress.

农民是农业的主体，我们要让农民成为现代农业的受益者。