Where there is much desire to learn, there, of necessity will be much arguing, much writing, many opinions; for opinion is but knowledge in the making...To be still searching what we know not, by what we know; still closing truth up to truth as we find it. It is this that makes up the best harmony, not the force and outward union of cold, and neutral and inwardly divided minds.
- John Milton, [i]Areopagitica[/i] 1664