The great powers are always searching for opportunities to gain power at the expense of their rivals, and they will use force if they think it will profit them.
There is no such thing as abstract art - all art is concrete in its own way.
Success is not final, failure is not fatal: It is the courage to continue that counts.
世界是一本伟大的书，从不离家的人只读了一页。
数学家的模式，就像画家或诗人的模式一样，必须是美丽的；思想，就像颜色或文字一样，必须以和谐的方式结合在一起。
Writing is a way of exorcising the demons that haunt us.