“There are no constraints on the human mind, no walls around the human spirit, no barriers to our progress except those we ourselves erect.”
Other Ronald Reagan Quotes
A hippie is someone who looks like Tarzan, walks like Jane and smells like Cheetah.
Ronald Reagan 
84% of people like this quote
Politics is not a bad profession. If you succeed there are many rewards, if you disgrace yourself you can always write a book.
Ronald Reagan
82% of people like this quote
Some people wonder all their lives if they've made a difference. The Marines don't have that problem.
Ronald Reagan
82% of people like this quote