勇气是所有美德中最重要的,因为没有勇气,你就无法始终如一地实践其他美德。
做伟大工作的唯一方法就是热爱你所做的事。
A man's life is limited, but service to the people is infinite.
The question is not whether the thing exists, but whether it has any essence which is capable of existence without us.