最小作用量原理是物理学的一个统一原理。
When Henry Ford made cheap, reliable cars people said, ‘Nah, what’s wrong with a horse?’ That was a huge bet he made, and it worked.
"A library is a place where the past meets the present and the future."
The only thing that is truly important is the love you give and receive.
I'm the reason your past won't go.
你必须站起来说:"我、我的身材或我是谁都没有问题。"