“One day a tortoise will learn how to fly.”
“He who would learn to fly one day must first learn to walk and run and climb and dance; one cannot fly into flying. ”
“Cats learned how to fly that evening,...”
“ Falling is the first step in learning how to fly. ”
“I had to leap, to learn how to fly”
“The sparrows jumped before they knew how to fly, and they learned to fly only because they had jumped”