Fred Astaire
The higher up you go, the more mistakes you are allowed. Right at the top, if you make enough of them, it's considered to be your style.
Garry Marshall
It's always helpful to learn from your mistakes because then your mistakes seem worthwhile. Garry Marshall, 'Wake Me When It's Funny'
Henry C. Link
While one person hesitates because he feels inferior, the other is busy making mistakes and becoming superior.
Bishop W C Magee
The man who makes no mistakes does not usually make anything.