It's much easier to tame a wild idea than invigorate one that has no life in the first place.
Observation capitalizes inspiration.
Necessity may be mother of invention, but fun is the father.
As in the piling up of hypothetical alternatives, creative accidents follow the law of probabilities the more we fish, the more likely we are to get a strike.
Any of us will put out more and better ideas if our efforts are appreciated.
Most ideas are step-by-step children of other ideas.