盖亚假说是为那些喜欢散步或只是站着凝视的人准备的,他们思考地球及其承载的生命,并推测人类活动的后果。
Suffering is the fire that purifies the soul.
Innovation in dairy production must balance efficiency with environmental responsibility.
晏子春秋
数学的历史是人类好奇心和创造力的历史。