每一本书都是一次旅程，每一页都是踏入未知的一步。
Every book is a journey, every page a step into the unknown.
Le rire est le soleil qui chasse l'hiver du visage humain.
世界需要各种形式的能源来满足不断增长的需求，天然气是一种更清洁的替代品，可以帮助填补这一空白。
I think the most important thing is to be honest and truthful with what you say and what you do.
In mathematics, the journey of discovery is as important as the destination.
过去从未死去，它甚至还没有过去。