组合数学就像是不用实际计数的计数艺术。
Combinatorics is like the art of counting without actually counting.
"I am fascinated by the complexity of human relationships."
The weight of evidence for an extraordinary claim must be proportioned to its strangeness.
The most important thing is to awaken in the child his own will and ability to create.
死亡终将是尽头，但生活充满了无限的可能。