如果你是用信用卡租车，不要购买额外的保险。

文化生态学通过关注人类与其环境之间的互动，弥合了自然科学与社会科学之间的鸿沟。

我相信圣诞节的魔力。

可持续性不是一种趋势，而是我们对后代的责任。

"A writer's duty is to illuminate the shadows, to give voice to the silenced."

The most challenging times often reveal the greatest opportunities for transformation.

I have noticed that youngsters given to the climbing habit usually do something when they grow up.