When you're responsible for feeding families, every decision carries weight.

The greatest gift you can give someone is your time, because you are giving them a portion of your life that you will never get back.

I don't let the world change my smile.

生活如果不搞笑的话那将成为一幕杯具。

The human body is a universe of mysteries waiting to be explored.

Science is a force for good, but only if we use it wisely.