As muddy water is best cleared by leaving it alone, it could be argued that those who sit quietly and do nothing are making one of the best possible contributions to a world in turmoil.
I have always thought that all men should be free; but if any should be slaves, it should be first those who desire for themselves, and secondly those who desire it for others. Whenever I hear anyone arguing for slavery, I feel a strong impulse to see it tried on him personally.
A central lesson of science is that to understand complex issues (or even simple ones), we must try to free our minds of dogma and to guarantee the freedom to publish, to contradict, and to experiment. Arguments from authority are unacceptable.
Not far from here where we gather today is a symbol of freedom familiar to all Americans -- the Liberty Bell. When the Declaration of Independence was first read in public, the Liberty Bell was sounded in celebration, and a witness said: "It rang as if it meant something."