现在是过去和未来之间的一座脆弱的桥梁。
"The present is a fragile bridge between the past and the future."
有时最深刻的数学来自于玩弄简单的想法,直到它们展现出隐藏的复杂性。
故事就像河流,永远流淌,永远变化。
The destiny of man is to unite, not to divide.
The strongest ecosystems are those with diversity.