There is nothing in biology yet found that indicates the inevitability of death. This suggests to me that it is not at all inevitable and that it is only a matter of time before biologists discover what it is that is causing us the trouble.

Science is what we do to keep us from lying to ourselves

If all of mathematics disappeared, physics would be set back by exactly one week.

The highest forms of understanding we can achieve are laughter and human compassion.

It is important to realize that in physics today, we have no knowledge of what energy is

Religion is a culture of faith; science is a culture of doubt.

I learned from her that every woman is worried about her looks, no matter how beautiful she is.