If you're not failing every now and again, it's a sign you're not doing anything very innovative.
There's no such thing as failure - just waiting for success.
FAILURE, JUST WAITING FOR SUCCESS
Failure is the condiment that gives success its flavor.
FAILURE, FAILURE IS THE CONDIMENT
Failure doesn't kill you... it increases your desire to make something happen.
FAILURE, IT INCREASES YOUR DESIRE TO MAKE SOMETHING
Don't be afraid of missing opportunities. Behind every failure is an opportunity somebody wishes they had missed.
Failure is instructive. The person who really thinks learns quite as much from his failures as from his successes.
FAILURE, FAILURE IS INTRUCTIVE
Failure seldom stops you. What stops you is the fear of failure.
FAILURE, FAILURE SELDOM STOPS YOU