悲观主义者在每一个机会中看到困难，乐观主义者在每一个困难中看到机会。
A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.
The most important thing in science is not to be afraid to ask questions.
The most powerful tool a designer has is the ability to say 'no.'
置信区间理论提供了一种不同于点估计和假设检验的估计未知参数的方法。
失败是有教益的。真正思考的人从失败中学到的东西和从成功中学到的一样多。