一本好书是一个永远不会让你失望的朋友。

选自《盐铁论·孝养》。距：通“拒”。【大意】拒绝接受别人意见的视听闭塞，自己独断专行的就会遭到孤立。

Legal rules are not merely commands backed by threats; they are also rules that confer powers and create obligations.

人类的未来取决于我们理解和操纵量子世界的能力。