Quote of the day
The liberty of man consists solely in this: that he obeys natural laws because he has himself recognized them as such, and not because they have been externally imposed upon him by any extrinsic will whatever, divine or human, collective or individual.
Frank N. von Hippel
Born: December 26, 1937 (age 86)
Bio: Frank N.J. von Hippel is an American physicist, born in 1937. He is Professor and Co-Director of Program on Science and Global Security at Princeton University and Woodrow Wilson School of Public and International Affairs.