Who said "He can who thinks he can, and he can't who thinks he can't."?

This quote is attributed to Pablo Picasso.

He can who thinks he can, and he can't who thinks he can't. - Pablo Picasso

"He can who thinks he can, and he can't who thinks he can't."

Pablo Picasso

Cubist Painter Sculptor Spanish 1881–1973

"Every child is an artist. The problem is how to remain an artist once we grow up."

"Art washes away from the soul the dust of everyday life."

"I found I could say things with color and shapes that I couldn't say any other way."

"Good artists copy, great artists steal."