"I'm not a fan of me, I'm a fan of my music."

反馈是鲁棒控制系统的关键。

He walked out in the gray light and stood and he saw for a brief moment the absolute truth of the world. The cold relentless circling of the intestate earth. Darkness implacable. The blind dogs of the sun in their running. The crushing black vacuum of the universe. And somewhere two hunted animals trembling like ground-foxes in their cover. Borrowed time and borrowed world and borrowed eyes with which to sorrow it.

Coal miners don't just dig in the dirt, they dig for progress.

你不可能永远快乐，但你可以永远勇敢。

剖面图是建筑师最具揭示性的图纸。

文学让我们在一生中活出千种人生。