I never saw a wild thing sorry for itself. A small bird will drop frozen dead from a bough without ever having felt sorry for itself.
I don't have to prove anything to anyone. There's nothing to prove.
科學(xué)的進(jìn)步不僅依賴于知識的積累，還需要有挑戰(zhàn)未知的勇氣。
出自《三國演義》，梁羽生在《七劍下天山》中引用
The only thing we have to fear is the absence of fear itself.