You may be disappointed if you fail, but you are doomed if you don’t try.
Everything you ever sense, in touch or taste or sight or even thought, has an effect on you that’s greater than zero. Some things, like the background sound of a bird chirping as it passes your house in the evening, or a flower glimpsed out of the corner of an eye, have such an infinitesimally small effect that you can’t detect them. Some things, like triumph and heartbreak, and some images, like the image of yourself reflected in the eyes of a man you’ve just stabbed, attach themselves to the secret gallery and change your life forever.