每个文明都是建立在另一个文明的骸骨之上。
Security is not a product, but a process.
我不在乎留下什么遗产。我不在乎是否被人铭记。
Music makes me happy and also sad.
"Science is not just a collection of facts, but a way of thinking."
许多人的名声如果在街上遇到自己的品德会互相不认识。