“Why were there so many barriers between us, always? Barriers of clothing, of etiquette, of time and age and reason.”
“I crossed the invisible barrier between us.”
“My new favorite word is 'awkward.'...The reason we need to be in search of awkward is that awkward is the barrier between us and excellence, between where we are and the remarkable. If it were easy, everyone would have done it already, and it wouldn't be worth the effort.”
“Age is, barrier for society, love and relationships.”
“Age is no barrier. It's a limitation you put on your mind.”
“Those walls and bars are there for a reason,' said Crake. ' Not to keep us out, but to keep them in. Mankind needs barriers in both cases”