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.

I think it's important to be kind and compassionate and to treat people with respect.

过去不是为了生活其中；它是一个结论的源泉，我们从中汲取以行动。

技术应该是无形的。当它运行得最好时，你甚至不会注意到它。

强化是获得新行为模式的核心因素。