" In fact, by its very nature, science is both progressive and conservative. It is conservative in that it is retentive of knowledge and cautious about making new assertions until they are fully defensible. But it is also progressive in that it is, and must always be, open to wherever observation leads, independent of belief and ideology, and focused on creating new knowledge. "

― Shawn Lawrence Otto , The War on Science: Who's Waging It, Why It Matters, What We Can Do About It