做同样旧事的代价远高于改变的代价。
The price of doing the same old thing is far higher than the price of change.
There are wounds that never heal, only scab over.
The only real failure in life is not to be true to the best one knows.
只有首先看到事情的可能性，才会有发生的机会。
数学的研究就像空气或重力——它无处不在，即使你看不到它。
Heard melodies are sweet, but those unheard are sweeter.
最复杂的电路板仍然需要最简单的人类价值观才能在社会中发挥作用。