As we decipher our biology and learn to modify and adjust it, we are learning to modify ourselves - and we will do so. No laws will stop this.

The biggest development in reproductive biology is the birth-control pill. Nobody ever talks about it, but look at the consequences: demographics; aging populations; the sinking population of Europe, Japan; immigration. It's incredible.

We must all learn to adjust with our surroundings.

Retarding the aging process would be therapy and enhancement because it would mean defeating diseases and because it would extend our life span.

If out of concern over cloning, the U.S. Congress succeeds in criminalizing embryonic stem-cell research that might bring treatments for Alzheimer's disease or diabetes - and Dr. Fukuyama lent his name to a petition that supported such laws - there would be real victims: present and future sufferers of those diseases.

It's been great watching her adjust and watching her learn.