Small actions, when multiplied by millions of users, can change the world.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
每個(gè)人都是孤獨(dú)的島嶼。
如果一個(gè)國(guó)家期望在國(guó)民無知的情況下卻擁有自由，那么這種期望無論在歷史上，還是未來都絕不會(huì)實(shí)現(xiàn)。如果我們打算抵御無知和捍衛(wèi)自由，每位美國(guó)人都有責(zé)任了解一件公共事務(wù)的來龍去脈。
A good illustration doesn’t just decorate the text—it expands it.