The constraints that limit you can actually lead to the inspiration. Freedom isn't always about having no boundaries, it's more about being able to run free because you have them... Like sheep on a cliff... without the fence they aren't free. (Or they're free to leap off the cliff and die I suppose.) But with the fence they can be move about freely without fear... even run. Anyway all that rambling on about sheep and fences and fear to say... limits sometime make you cleverer.
Take Dr Seuss for example. The Cat In The Hat came about because his publisher challenged him to write a beginning reading book with only a limited vocabulary. It has only 223 different words. (The word cloud shows the words he used, minus "the", "and" and "I".) With a tiny pile of short words he created a classic.Seuss found the limited vocabulary challenging and, after a period of frustration, simply chose the first two words on the word list that rhymed: "Cat" and "Hat".

