Human beings, viewed as behaving systems, are quite simple. The apparent complexity of our behavior over time is largely a reflection of the complexity of the environment in which we find ourselves.

量子算法的发展需要对量子力学和计算机科学的深入理解。

"A writer's duty is to tell the truth, no matter how painful."

艺术是永恒的，生命是短暂的。

To understand the meaning of a sentence， we must consider the speaker's intention and the context of the utterance.