Ideas shape the course of history - John Maynard Keynes
All great ideas are controversial, or have been at one time - George Seldes
There is only one way in which a person acquires a new idea: by the combination or association of two or more ideas he already has into a new juxtaposition in such a manner as to discover a relationship among them of which he was not previously aware - Francis A. Cartier
An idea is a feat of association - Robert Frost
There is one thing stronger than all the armies in the world: and that is an idea whose time has come - Victor Hugo
It's just as sure a recipe for failure to have the right idea fifty years too soon as five years too late - J. R. Platt
It is impossible for ideas to compete in the marketplace if no forum for their presentation is provided or available - Thomas Mann