"Let us remember that those who have sought natures truths have not persecuted
their neighbors. The astronomers and chemist have forged no chains and built
no dungeons. The geologist have invented no instruments of torture. The
philosophers have not demonstrated the truths of their theories by burning
others. The great infidels, the thinkers have lived for the good of humankind.
Intellectual liberty is the fresh air of the universe and the sunshine of the
soul. Without it, the universe is a prison."
[Robert G. Ingersoll]