如果你沒(méi)有偶爾失敗，說(shuō)明你不夠努力。
The beauty of physics lies not just in the answers it provides, but in the mysteries it reveals.
The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd.
一個(gè)觀點(diǎn)被廣泛持有并不是它絕不荒謬的證據(jù)。