Don't worry about people stealing your ideas. If your ideas are any good, you'll have to ram them down people's throats.
“I heard Sidney Bechet play a Duke Ellington piece and fell in love with the soprano saxophone.”
“Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure, or nothing.”