Anyone who isn't embarrassed of who they were last year probably isn't learning enough.

Once something is a passion, the motivation is there.

统计学家不能推卸理清科学推断原理的责任，同样，任何其他思考者也不能避免类似的义务。

地球是一个具有特定组织的宇宙个体，一个被赋予明确结构的建筑。