除非绝大多数人团结起来捍卫文明、自由与和平，否则它们将无法延续。
Civilization will not last, freedom will not survive, peace will not be kept, unless a very large majority of the people unite to defend them.
The artist must be both poet and engineer.
Success is a state of mind. If you want to succeed, start thinking of yourself as a success.
In mathematics, you don't understand things. You just get used to them.
最好的故事是那些提出问题而不仅仅是提供答案的故事。
改变是不可避免的，而成长是可选的。
我不是为孩子写作，我是为人写作。