Do not fear mistakes
If you're not failing every now and again, it's a sign you're not doing anything very innovative.
Failure doesn't kill you... it increases your desire to make something happen.
FAILURE, IT INCREASES YOUR DESIRE TO MAKE SOMETHING
Even when you have doubts, take that step. Take chances. Mistakes are never a failure - they can be turned into wisdom.
FAILURE, MISTAKES ARE NEVER A FAILURE
Failure is instructive. The person who really thinks learns quite as much from his failures as from his successes.
FAILURE, FAILURE IS INTRUCTIVE