爱是用心去欣赏;欣赏是用理智去爱。
To feel much for others and little for ourselves; to restrain our selfishness and exercise our benevolent affections, constitute the perfection of human nature.
未来的城市从一开始就是废墟。
书籍是最安静、最恒久的朋友;它们是最易接近、最睿智的顾问,也是最耐心的老师。
数学的乐趣在于发现模式并理解它们的含义。