人生最好的老师就是经历。
The best teacher in life is experience.
艺术不是反映现实的镜子，而是塑造现实的锤子。
In the ocean of science, everyone is a student, there is always something new to learn.
The world has the technology - either available or well advanced in the research pipeline - to feed on a sustainable basis a population of 10 billion people.
He who can bear with your ignorance has found a true friend.
格瓦拉第二次漫游南美前对母亲说
