It is tasteless to prolong life artificially,” he told Dukas. “I have done my share, it is time to go. I will do it elegantly. - Walter Isaacson

"He wished to please everybody," Franklin later said of Keith, "and having little to give, he gave expectations."

"Steve's head dropped and stared at his feet. After a weighty, uncomfortable pause, he issued a challenge that would haunt me for days. " Do you want to spend the rest of your life selling sugared water, or do you want a chance to change the world?"
Sculley felt as if he had been punched in the stomach. There was no response possible other than to acquiesce. " He had a uncanny ability to always get what he wanted, to size up a person and know exactly what to say to reach a person," Sculley recalled. "

This inability to ground his fantasies in reality has generally been regarded as one of Leonardo’s major failings. Yet in order to be a true visionary, one has to be willing to overreach and to fail some of the time. Innovation requires a reality distortion field. The things he envisioned for the future often came to pass, even if it took a few centuries. Scuba gear, flying machines, and helicopters now exist. Suction pumps now drain swamps. Along the route of the canal that Leonardo drew there is now a major highway.