In mathematics, the journey of discovery is often more rewarding than the destination itself.
The quality of an organization is determined by the quality of its systems.
协助儿童,能使你们之间建立起更亲密的关系。这胜过一般的感情,因为你不仅给他安慰,更给予了他们实际的帮助。
The world is full of obvious things which nobody by any chance ever observes.