常識(shí)告訴我們，一個(gè)試圖征服我們的國(guó)家是所有國(guó)家中最不適合保衛(wèi)我們的。
The only limit to our realization of tomorrow is our doubts of today.
The laws of physics are the same everywhere in the universe, and that is a profound truth that connects us all.