“He can who thinks he can, and he can't who thinks he can't. This is an inexorable, indisputable law.”
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Pablo Picasso 128
Spanish painter, sculptor, printmaker, ceramicist, and stag… 1881–1973Related quotes

“There is no man living who isn't capable of doing more than he thinks he can do.”
The Right Hon wag http://www.guardian.co.uk/g2/story/0,,1682818,00.html, The Guardian, 10 January 2006.
on seeing John Major in the House of Commons as Prime Minister.

Tony Banks, The Right Hon wag http://www.guardian.co.uk/g2/story/0,,1682818,00.html, The Guardian, 10 January 2006

“He who thinks always of the Lord, which way can evil come to him?”
[Holy Mother, Prabuddha Bharatha, 92, Advaita Ashrama, 1969]

“He who thinks he knows, doesn't know. He who knows that he doesn't know, knows.”

“He who learns but does not think is lost. He who thinks but does not learn is in great danger.”
Source: The Autobiography of Eleanor Roosevelt

“He is able who thinks he is able.”
Source: One Flew Over the Cuckoo's Nest