Leadership in times of change requires both vision and the courage to make difficult decisions.

Giving up smoking is the easiest thing in the world. I know because I’ve done it thousands of times.

Thank you fans for your continuous support, without you there would be no me today.

The richness I achieve comes from nature, the source of my inspiration.

在科学问题上，一千个人的权威抵不上一个人的谦卑推理。