心灵进化是为了满足生存的需求。
真正的爱情是属于成年人的。
La vida es una sucesión de instantes, y cada instante es un poema.
The history of philosophy is not, like the history of the sciences, to be considered as a mere chronological record of discoveries and errors. It is the history of the human spirit in its endeavor to understand itself and its relation to the universe.
解决复杂问题的关键是提出正确的因果问题。
一切生命的目标都是死亡。