A hundred times every day I remind myself that my inner and outer life depend on the labours of other men living and dead and that I must exert myself in order to give in the same measure as I have received.

Occurrences in this domain are beyond the reach of exact prediction because of the variety of factors in operation, not because of any lack of order in nature.

Logic will get you from A to B. Imagination will take you everywhere.

The whole of science is nothing more than a refinement of everyday thinking.

Everything should be made as simple as possible ... But not simpler.

It occurred to me by intuition, and music was the driving force behind that intuition. My discovery was the result of musical perception.