大自然将人类置于两位至高无上的主宰之下,痛苦和快乐。
Nature has placed mankind under the governance of two sovereign masters, pain and pleasure.
这个神奇的国家——一个不仅奇迹发生,而且奇迹不断发生的地方。
The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.