我的失明从来不是一种限制；它教会了我以不同的方式看世界。
My blindness has never been a limitation; it has taught me to see the world in a different way.
盗贼是穷人最好的朋友。
The deepest problems in mathematics often arise from the simplest questions.
质量不是承诺；它是一种结果。
The meaning of a word is not a mental entity， but a social practice.
It has been said that man is a rational animal. All my life I have been searching for evidence which could support this.