Sensei:Before we talk about quantum mechanics, Firstly we are going to talk about wavelength and energy. Human only can sees wavelength between Infrared and Ultraviolet rays. Now, which of the color have the higher wavelength?
Sensei:Good. Now which of them have the higher energy?
Sensei:Wrong, the correct answer is Violet. . . (then sensei suddenly become quiet)
Sensei:Now what's Doshisha's color?
Sensei:It means you guys have high energy inside the class, isn't it?