“Freedom of mind is the real freedom. A person whose mind is not free though he may not be in chains, is a slave, not a free man. One whose mind is not free, though he may not be in prison, is a prisoner and not a free man. One whose mind is not free though alive, is no better than dead. Freedom of mind is the proof of one's existence.”
“The cruelest prison of all is the prison of the mind.”
“Mind is prison of one's potential which can be freed by his dreams.”
“Men are not prisoners of fate, but only prisoners of their own minds.”
“A mind enclosed in language is in prison.”