Send text messages to teachers in all subjects during the Spring Festival.

To the Chinese teacher: Mr. Lu Xun once said: There is no cold in the world. If you don't pay attention to adding clothes, there will be cold. A real warrior dares to face the cold wind and accept involuntarily.

, what's the matter?

and

Ah!

Say: Really, I am so stupid. I know I'll catch a cold without clothes. Me too. . . Teachers need to put on more clothes in cold weather ~

To the math teacher: It is known that happiness can be guided and time can be differentiated, so my blessing to you is continuous, yes.

What cannot be proved is that

Not differentiable. Because the curve of memory is convex and the curve of missing is concave, I haven't forgotten your point. To sum up, happiness is convergent, waiting is unique, and my blessing to you is monotonically increasing. Wish you trouble.

Good luck is persistent, can be guided, and the ideal must be certain.

Every day, life is not monotonous and the road is not the same.

. F' (Emotion) > 0, lim Happy =

!

For the English teacher: I opened my wallet and found no money; I opened my pocket and found no coins; I opened my life, found you, and then I knew how rich I was!