我想我是不敢开心了，因为每次都会乐极生悲。

创新和技术是应对供应能源和解决气候变化的双重挑战的关键。

The most important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.

My past doesn't define me.

显然，了解自然法则无异于了解其中表达的上帝的思想。