David

“Failures plagued me. Things I had omitted or ignored, neglected. What I should have given and hadn’t. I felt the biting pang of every unfulfillment.”
― Richard Matheson, What Dreams May Come

“Science, my lad, is made up of mistakes, but they are mistakes which it is useful to make, because they lead little by little to the truth.”
― Jules Verne, A Journey to the Center of the Earth

“You may encounter many defeats, but you must not be defeated. In fact, it may be necessary to encounter the defeats, so you can know who you are, what you can rise from, how you can still come out of it.”
― Maya Angelou

“All of old. Nothing else ever. Ever tried. Ever failed. No matter. Try again. Fail again. Fail better.”
― Samuel Beckett, Worstward Ho