If you have built castles in the air… If you have built castles in the air, your work need not be lost; that is where they should be. Now put the foundations under them. Henry David Thoreau Facebook Prev Quote Next Quote Related Posts Thinking is the hardest work there is… But we can’t go back. It’s hard to beat a person…Add Comment Cancel reply Notify me of follow-up comments by email. Notify me of new posts by email.