Neil deGrasse Tyson is a well-known astrophysicist and media personality who speaks around the country about astrophysics and recent discoveries. While on a radio program, he was asked about the meaning of life. His response was that meaning and purpose are dependent on the choices we make. We live. We die. And in between we hopefully contribute something positive to the world. In short, life has no meaning unless we give it one.
With all due respect to Dr.